Bio Bay Kayak Tour in Fajardo
Badge of Excellence
Fajardo, Puerto Rico
- 2 hours (approx.)
- Mobile ticket
- Offered in: English
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Overview
Paddle through the beautiful bioluminescent bay near Fajardo on this kayak tour. Traverse the extensive mangrove forests with your marine biologist tour guide and learn about the science behind this natural phenomenon that occurs in Laguna Grande. See the lights twinkle below the water as you paddle along and admire the beautiful coastal scenery at dusk before heading back to the starting point.
- Kayak tour to Puerto Rico’s ‘bio bay’ at Laguna Grande
- Learn about the natural phenomena from a marine biologist tour guide
- Paddle through the mangrove forests and admire the coastal scenery
- All necessary instruction and kayaking equipment are provided
What's Included
- Snacks
- Professional guide
- All necessary gear
- Gratuities
- Private transportationPlease contact us if round trip transportation is needed. Minimum of 4 guests. $39.02 per person round trip. Tax included.
Meeting and Pickup
Meeting point
- Pure Adventure Bio Bay LocationKayak Village, 987 Street, kiosko #1 Fajardo, PR 00738, Las Croabas, Fajardo 00738, Puerto Rico
Weight LIMIT 240 PER PERSON. NO EXCEPTIONs. Guests will be weighed on site. Departs from Kayak Village, Fajardo. Check-in 30 mins prior starting time to find parking & sign waiver. Look for Pure Adventure's kiosk #1, name & logo. Contact us for transportation.
End point
This activity ends back at the meeting point.What To Expect
1
Laguna Grande
Additional Info
- Confirmation will be received at time of booking
- Not recommended for pregnant travelers
- Not recommended for travelers with back problems
- No heart problems or other serious medical conditions
- Not wheelchair accessible
- Service animals allowed
- Near public transportation
- Travelers should have a moderate physical fitness level
- RESTRICTION: weight limit of 240 lbs PER PERSON. NO EXCEPTIONS. To assure weight restriction is met, guests will be weighed on-site. No participation allowed over the weight limit.
- Minimum age 6 years
- For safety reasons pregnant women cannot participate. (NO EXCEPTIONS)
- Our kayaks are all tandem kayaks for two people - you are booking per person not per kayak. If one space is left, that means there is 1 space on a tandem kayak.
- Guest under 18 yrs of age must be accompanied by an adult.
- The owner of the service animal must provide a Licensed Life-vest by the Coast Guard for the animal. The animal must be in total control all the time. Keep in mind that there will be many people around in the dark.
- Guest that are not able to complete the tour for any reason will not be provided a refund of any type.
- All guests must be able to row their kayaks by themselves. One of the requirements is that you are able to get in and out of the kayak on your own and be able to maneuver it. If you are an unexperienced kayaker we highly suggest you choose the earlier tour.
- If one space is left, that means there is 1 space (for 1 person) on a tandem kayak (No single kayaks available). You will be accompanied by another guest on the tour.
- All guest must arrive 30 mins before the start of their tour. We respectfully will not accept or wait for any guest after this time.
- If necessary, a tarp (canopy) may be used during the excursion to block any light pollution and enhanced the experience.
- In order to best appreciate the bioluminescent phenomena our tours run at sunset and early evening and it can get quite dark in the mangrove canal. So, if you are afraid of darkness, a first time kayaker, or have small kids we strongly suggest taking the earlier, sunset trip. This way you can see where you are going, get use to the environment and sharpen your kayaking skills
- Due to the immense popularity the Bio Bay tour, at times can get crowded. It’s not uncommon to meet up with other tour groups waiting to access the canal leading to the lagoon. There can be bumping other kayaks along the way.
- Please keep in mind that this tour takes place in a natural environment and that the bioluminescent phenomenon, although rare, can be seen year round. The intensity of brightness is unpredictable and can vary from minimal to very bright suddenly.
- SPECIAL NOTE: We encourage our guests to not reserve the tour on the same day of arrival to the Island, including coming from Vieques or Culebra. If the FLIGHT or FERRY is delayed and the guest misses the tour the guest will not be entitled to a refund or rescheduling.
- TOUR TIME might change depending on sunset time. If so we will send a reminder for updated meeting time.
- This tour takes place in the water. Expect to get completely wet. Wear clothes and shoes that can get wet. We recommend to bring a change of clothes and towel for after the trip.
- Tour is not canceled in rainy days. We will get wet anyways ;)
- There are public bathrooms on-site, but they are not always in good condition. You may consider stopping in fast food before getting to the meeting site or using the bathrooms from the nearby stores/restaurants which are sometimes available.
- Certain time of the year great amounts of sargassum (seaweed) arrive to our coasts. This can make paddling to feel like a workout. Also the natural decomposition odor might be unpleasant.
- Even if Viator system allows the guest to write weight over the limit, it will still be 240 lbs the weight limit.
- No Expecting Mothers
- For safety reasons, children under 6 years old CANNOT participate in PURE ADVENTURE tour.
- Those who have epilepsy, back problems, claustrophobia, heart conditions, dizziness, recent surgery or any other condition that may put life in risk are not allowed to participate in PURE ADVENTURE tour.
- RESTRICTION: weight limit of 240 lbs per PERSON, not per kayak. To assure weight restriction is met, guests will be weighed on-site.
- Not recommended for travelers with heart problems or other serious medical conditions
- Our offices are closed on SUNDAYS - Reservations made Saturday after 5 pm will not be revised until Monday at 9 am. For cancellations request during this time please send us a message through Viator.
- It is the guest responsibility to comply with health and weight requirement.
- Even if Viator system allows the guest to write weight over the limit, it will still be 240 lbs the weight limit.
- This tour/activity will have a maximum of 30 travelers
Supplied by
Cancellation Policy
You can cancel up to 24 hours in advance of the experience for a full refund.
Traveler Photos
Featured review
Catalina_R
Amaury, Yadiel, and Catalina were excellent! The tour guides made sure everyone was safe, reviewed all the rules prior to departing, and ensured we received an amazing experience! They were extremely attentive and informative! It was a beautiful experience, even though we had low luminescence that night, we still had a fun time! Cannot recommend this experience enough.
Reviews
4.6
based on 1,551 reviews
Kelly_S, Apr 2026
Awesome experience! Super well organized and great guides!! The stars were amazing, the bay was peaceful, and the kayaking was rewarding! 100% recommend for a unique experience in Puerto Rico!
Miranda_S, Apr 2026
The tour guides were absolutely fantastic, funny, engaging, and truly excellent at what they do. They brought so much energy to the experience and made everything both entertaining and informative from start to finish. You can tell they really care about what they do, and it made a big difference. Keep it up!
Bonnie_H, Apr 2026
It gets crowded through the mangoes. It’s a lot of people that don’t know how to steer your canoe. And sometimes the current coming back is very hard with all that is still a fun experience. You will see the glow, but it definitely won’t be like in the pictures.
Yvette_F, Apr 2026
Extremely well organized. Guides were friendly, knowledgeable and a joy to work with.
Incredible experience, well worth your time.
Seeing the water light up at our touch was amazing. You paddle through mangroves to a
private bay of magic. Totally recommend. Thanks Amaury, Eli,,David, Javier, Natalia for a great adventure!
Diana_r, Apr 2026
It was really fun! Definitely wear lots of bug spray and be ready for a workout! But it was AMAZING! The crew was 10/10, they were all awesome!
Response from Host, Apr 2026
Hi Diana_r,
Thank you for sharing your feedback, we really appreciate it. You were also 10/10 ;)
We hope to see you again in the future.
Cordially,
PURE ADVENTURE'S TEAM
Kyle_D, Apr 2026
Kayaking through the mangroves into Laguna Grande was a surreal experience, especially in the dark. We felt safe and informed by our guides, especially Eli! Although the bioluminescence itself was slightly underwhelming (due to light pollution, cloud coverage, high tide and recent rainfall), but we found the phenomenon fascinating and would recommend other travelers see it before they leave PR.
Jake_H, Apr 2026
Fantastic experience to cap off our week in PR. It was definitely one of the highlights of the trip. We were a group of 9 with five kids, 7 to 12, and it was just the right level of challenge and adventure for them. We were worried about it being a full moon, but the tarp they brought made it easy to see the bioluminescent plankton, and the kids and adults were wowed alike. The guides were all fantastic, helpful, patient, fun and informative. We learned about the wildlife, the mangroves, and the night sky in addition to the lagoon. Couldn’t have been better. 10/10!
Savannah_H, Apr 2026
Second time doing the bio bay kayak tour with this group and both times have been awesome! All of our guides were great and very knowledgeable about the bay.
coatssimon, Apr 2026
Great experience fun educational and easy to do. With some coordination lol. Two thumbs up for our tour guides very knowledgeable, friendly and patient
Jorge_F, Mar 2026
I like to start by giving high marks for Natalia and the staff. They were very engaging with the group and were very helpful in explaining how to kayak and the dos and don’ts and the importance of safety for other kayakers. Also, the about the history of the bioluminescent bays. In the past I have experienced the bio luminescent not in Fajardo but in La Parguera which was an amazing phenomenon and experience for me. My girlfriend has never been to Puerto Rico and she wanted to experience this phenomenon and was hoping that the excursion we did in Fajardo would have delivered. Unfortunately, it came up short and was disappointing. I will give my pros and cons about the experience:
Pros:
• It was not difficult to get to the place and the area was very lite up and there was other business that were offering other water excursions.
• I appreciate Natalia trying to contact me to confirm that I was on my way.
• I appreciated the staff explaining to the non-kayakers how to kayak and they would be available to assist if someone needed help.
• The life jacket came with a whistle in the event a kayaker fell of the kayak or needed help.
• The staff made sure that the group of kayakers stayed together in formation through the mangroves until we made it out to the bay.
• We got to kayak around the bay enjoying the surrounding areas and the beautiful skies.
Cons:
• Because of the full moon and we reached the site, a section of the kayaks had to be covered by a large tarp to get a better view of the bioluminescence.
• We got to see a quick flash of it under less then a minute to move the tarp to the other section of the kayakers.
• I was not interested in knowing more about the sky, where the Milky way or the Big Dipper constellation was.
• I am not sure what was the benefit of kayaking around the mangroves at night afterwards.
• If I knew about checking the Moonrise Times moon time calendar, I would have selected one of the days to experience the bioluminescence.
• The company Pure Adventure Corp should have given notice to the paying customers the choice on whatever day was selected that during a full moon or when the sky is bright, the likelihood of seeing this wonderful phenomenon will be limited and a tarp would have to be used.
• On your cancellation Policy, it stated: This experience requires good weather. The weather was good; however, it was still too bright and the moon was out limiting our view of the bioluminescence.
People pay good money from all over the world to come see this amazing wonder. However, on a bright night or full moon, they only get to see a sprinkle. I understand businesses need to make money; however, they should also deliver on what the customers are expecting and you guys came up short. I showed her you-tube videos prior to this event and again, came up short.
Jenifer_C, Mar 2026
Eli the instructor was STUPENDOUS and all the other instructors. He was the one that was helping me and Rebecca while we tried coordinating our kayaking skills.
The kayaking was good but it was a bit disappointing that the bioluminescence did not occur. They covered us with a dark blanket so it can get really dark but even as you splashed in the water it was slight sparkles.
The experience was cool but I wouldn't go again. For anybody looking to go, be sure to bring a change of clothes because you get soaked
Jill_K, Mar 2026
I had a wonderful time kayaking to the lagoon. It was very peaceful. On the way there we saw and heard many birds. Once in the lagoon we had some time before we saw the bioluminescence and it was incredible. The guides we very helpful!
Lourdes_C, Mar 2026
It is a fun and safe experience. One must know how to kayak because you are on your own. Guides onñy show you the trails and/or help in an emergency. The instructor's chat could have been more enthusiastic. It sounded tired and matter of fact. Viator should giive the company name because there are several companiies. The name Kayak Bio Tour is of the area. We wasted time asking around where to go.
Sarah_C, Mar 2026
This was my favorite activity during our vacation in Puerto Rico! The guides were awesome, especially Amaury and Javier. I loved the 6pm tour because we got to see the mangroves in daylight and then got great pictures of sunset at the lagoon. The guides were knowledgeable and also excellent photographers! I loved learning about the night sky as well as the bioluminescence. This is the best experience!
morgan_f, Mar 2026
I am so glad we chose to experience this with Pure Adventure! Going through the mangroves while it was still light allowed us to see this amazing and unusual area, and getting to the bay before all the other groups allowed for some quiet time. If you go, you will get wet, and you will have to pay attention and paddle. Totally worth it and I highly recommend. Amaury, Eli, Michael, Felix and Javier were all great.
Response from Host, Mar 2026
Hello morgan_f,
Thank you so much for sharing your experience with us. It does make a difference when you get to enjoy the mangrove forest during sunset time. I'm glad that you loved it.
Great recommendations too ;)
We hope to see you again.
Cordially,
Yolanda Ramos
PURE ADVENTURE
Rosie_P, Mar 2026
We knew that we were going on the tour that we possibly would not see anything because of the moonlight. Once hit the bay our guides hooked us together and had us place tarps over our heads allowing us to see the flagalettes(sp). I appreciated that their care and also their excitement to have us on their tour. I had been on this tour about 10 years ago and it was sad to see how much of the mangrove has died.. but having said that I thoroughly enjoyed the trip with my family. I pray that Puerto Rico can find a way to protect, maintain this beautiful treasure. Even if it means it slows the tourism for a bit to do it. I know there are only a handful of these bays that still exist in all its glory.
Response from Host, Mar 2026
Hi Rosie_P,
Thank you very much for sharing your experience with us. We are super happy that you had an excellent time with us.
We, and all the companies, fight very hard to protect this wonderful reserve. The mangrove forest took an incredible hit by Hurricane Maria back in 2017 and it is still recovering from that. Back then it looked like a wildfire eliminated all mangroves in the area. They have been slowly recovering since then.
Hopefully with all the local efforts to protect the reserve they will recovery to its fullest any time in the future.
Thanks again for your feedback and we hope to see you again.
Cordially,
Yolanda Ramos
PURE ADVENTURE
Marydarlene_C, Feb 2026
As a senior citizen we struggle a little going against the current but Javier and David ensured we kept up with all the young people Jadiel, amacry and Eli rounded out our team. They made the experience educational and enjoyable. Highly recommend it
Response from Host, Feb 2026
Dear Marydarlene_C,
Thank you very much for sharing your experience with us. I am very happy that the guides were very helpful and provided an enjoyable and educational experience for you.
We hope to see you again.
Cordially,
Yolanda Ramos
PURE ADVENTURE
Lisa_P, Feb 2026
Very attentive staff. Super friendly and gave us great instruction for the kayaks. I appreciated the information they shared when we were out in the lagoon. Excellent tour! Highly recommend!
Response from Host, Feb 2026
Hi Lisa_P,
We truly appreciate your honest feedback and we are very happy that you had an excellent time with us.
Cordially,
Yolanda Ramos
PURE ADVENTURE
Ashley_B, Feb 2026
We took the 6pm tour, we enjoyed seeing the mangrove channel in the light on our way in and got to the bay just in time to see the end of a spectacular sunset. It got dark quickly and you could start to see the bioluminescence when you moved the water. To block out light pollution from the city, they give you a few minutes under a huge tarp to see the full brightness. You can continue to see it in the mangrove channel on your way back as you move the water. The guides were knowledgeable and friendly, and made sure everyone stayed safe and happy. Try to visit as close to the new moon as you can, and remember you only see it when the water moves, so put your hands in the water and move them around to see the ‘stars’ while you are out there.
Response from Host, Feb 2026
Hi Ashley_B,
Thank you very much for sharing your feedback and details about your experience, we truly appreciate it.
Cordially,
PURE ADVENTURE'S TEAM
Jill_C, Feb 2026
This was a gorgeous, beautiful way to explore the mangroves, and see the bioluminescence. We’ve never experienced something like this before! The guides were very helpful and competent. It’s very dark, and got a little confusing when we’d pass other kayak groups, but we always felt safe. Javier and his team were terrific!
Priya_J, Feb 2026
LOTS OF OTHER PEOPLE. Tours on tours were out there. Had to be under a tarp to see bioluminescence really well. The guides were really great - very thorough and knowledgeable. It was just too crowded.
Gregory_M, Feb 2026
We booked the 6:00 pm trip and it had 2 big benefits and one downfall. We got to paddle the mangroves in the dusk light which was amazing as well as we got to see the sunset over bio bay prior to it getting dark for the bioluminescence. The bioluminescence was not nearly as spectacular as I had heard and read about online. All-in-all it was a great time and I definitely recommend it. Tours were going out after us in the pitch darkness so the bioluminescence was probably better but they missed the mangroves and sunset
Paul_M, Feb 2026
Great time! Highly recommended! Guides were exceptional!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Response from Host, Feb 2026
Hey Paul_M,
Thanks for your feedback and for joining us.
We hope to see you again.
Cordially,
Yolanda Ramos
PURE ADVENTURE
Meredith_P, Feb 2026
Paddling out was hard work, but it was so cool to see the bioluminescent water! Our tour guides were full of energy and enthusiasm.
Grace_M, Feb 2026
This was a wonderful tour experience! We didn’t know what to expect going in and it blew us away! We went on a perfect night where there was little light pollution and the skies were clear. The bioluminescence was amazing. Huge shoutout to Eli, Javier and all of the guides for guiding us through the dark and educating us on the marine biology.
Would recommend to anyone! But would also recommend that you have some kayaking experience before signing up!
Response from Host, Feb 2026
Hi Grace_M,
Thank you for sharing your experience with us. We are very happy that this adventure blew you away and that the guides took great care of the group.
Although not required, to have kayaking experience is always a plus for this night kayaking adventure.
Thanks again for your feedback.
Cordially,
Yolanda Ramos
PURE ADVENTURE
Thomas_M, Feb 2026
Overcrowded - too many kayaks out at the same time. Like bumper cars! Experienced rower but constantly concerned about flipping owing to collisionsz Bioiluminescence was very subtle. Essentially paying for night kayaking. Decently fun if you know what to expect
Parking was bad. We drove in behind 3 other cars thru what was apparently the exit side (we checked later - it was NOT well demarcated.) the parking attendant was the rudest ever. After I roll down the window he kept asking me “did you not see the sign? Did you not see the sign? It says exit!” I apologize and say “I’m sorry, what would you like me to do.” He tells me to just pull forward and then calls me a “Cabron” under his breath as I’m rolling up the window!
Also on the topic of too busy… tour guides were attentive but I don’t think would have known if a kayak was left behind with guide to kayak ratio! And at the beginning they were helping us adjust in our kayaks, adjusting the seat. And come to find out after it’s over he tied my partner’s life vest to the seat itself!! Took 2 minutes to get the knot out… surely a mistake but would have been a disaster if we had capsized! Overall for all the reasons above would not recommend the experience.
Response from Host, Feb 2026
Hello Thomas_M,
Thank you for your feedback. We would like to clarify a few things, though.
There are various companies that do the tours in the area. Unfortunately, we have no control over the number of companies that operate in the area. During high season, which is warned in our website, the area can be crowded. We make sure to communicate this because we understand that not everyone is comfortable in a crowd, and it is the guests decision whether to book or not under these circumstances. Before going out, we have a safety briefing during which all instructions including explaining the lights on our kayaks are discussed. All our kayaks have lights in the front and the back to allow guests to follow the group and guides to keep track of the people in the group. We always have a guide in the front and a guide in the back for safety, additional to the others in the middle. In fact, in 19 years of operations through the whole year (we are not seasonal), we have never lost a kayak or a guest. We can assure you that no life vest was tied to the kayak as it is not safe nor standard protocol. Like we mentioned, we are not amateurs. Sometimes people like to tie their life vest to their own body, which is fine. However, we’ve had guests that because of doing that once they are seated, they get tangled. Finally, we want to clarify that the parking lot guard is not tied, connected or employed by our company. This is a municipal employee. While we are sorry that you had that experience with him, the complain about him should go to the municipality of Fajardo and not us. Thank you again for your feedback.
Cordially,
Yolanda Ramos
PURE ADVENTURE
Katherine_V, Feb 2026
Very well-run tour. We were able to see the bioluminescence even without the tarp because of the moon phase. Clean equipment, timely, friendly guides.
Response from Host, Feb 2026
Thank you Katherine_V for coming to this adventure with us. We are very happy that you liked it.
We hope to see you again.
Cordially,
PURE ADVENTURE’S TEAM
Kate_R, Feb 2026
Wonderful experience with these guys. We started at 6 pm, and it wasn't too dark when kayaking to the bay. We could enjoy wildlife and mangroves. Then the full darkness appeared in about an hour. We could see blue light in the water. It was wonderful! The team provided the tarp for better observation. But even without it, we can see blue sparkles in the water! We enjoyed it a lot. Next time will bring our kids with us. Thank you! Highly recommended
Response from Host, Feb 2026
Hello Kate_R,
Thank you so much for joining us and for your review.
We are looking forward to your next visit with your kids ;)
Cordially,
Yolanda Ramos
PURE ADVENTURE
Lynne_D, Feb 2026
We were 3 and had to separate into 2 kayaks and yet they kept us together even at the pond. Also I have some trouble walking and the staff were so helpful getting me down the hill and into the kayak. Very knowledgeable staff. All were very friendly: Javier, Amaury, Eli, Michael, and Natalie. Thank you for a wonderful experience,!
Laura_B, Feb 2026
Wow! This tour was so much fun. 6:00pm was the ideal time to go out. Our guides were very knowledgeable not only about everything we saw down here on earth but also about the stars above us.
Response from Host, Feb 2026
Hello Laura_B,
Our team likes to go the extra mile, even to the stars ;)
Thank you for sharing your feedback.
We hope to see you again soon.
Cordially,
Yolanda Ramos
PURE ADVENTURE
From $66.90
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