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Beyond Oahu

Oahu: Submarine Scooter Adventure

Recommended by 95% of travelers
Oahu, USA
High interest
Booked 4 times today.
  • 2 hours (approx.)
  • Mobile ticket
  • Offered in: English

Why travelers loved this

4.8
·
· Caylee_K ·
Sep 2026
Absolutely AMAZING experience! The guides and divers were so friendly, informative, and made the entire experience easy and fun. The 1-on-1 time with a diver was awesome, and we got to see SO many turtles and different fish! Highly recommend booking the morning session! ☀️ Make sure to bring a towel and a bag for your belongings while you’re in the water. You won’t regret booking this experience!
· Jillian_E ·
Sep 2026
Amazing ! If you love the water and want to see beautiful ocean life, then this is the tour for you! So happy we decided to this they were very helpful took amazing pictures and videos of the experience and made us feel so safe ! 100% need to do again

Overview

Get a different perspective on Oahu by riding your own self-propelled electric submarine scooter through Maunalua Bay. Cruise past Diamond Head Crater, Koolau Mountain Range, and Koko Crater on a comfortable catamaran before an underwater adventure spotting green sea turtles, tropical fish, and coral reefs. After diving, relax on the boat with snacks and drinks while enjoying island stories.
  • Enjoy views of Diamond Head Crater as you cruise on Maunalua Bay
  • No problem for non-swimmers—the scooter does all the work for you
  • Stay safe on and in the water under the watchful eye of you guide
  • Wetsuit top, snorkel gear, equipment, snacks, and drinks are all provided

Why Travelers Choose This Tour

An underwater scooter makes marine life accessible to all – even non-swimmers.

What's Included

  • Submarine Scooter Adventure
  • Snacks
  • Non-Alcoholic Beverages
  • All necessary equipment
  • Wetsuit top and snorkel gear
  • Hotel pickup and drop-off

Meeting and Pickup

Meeting point

  • Bob's Hawaii Adventure
    7192 Kalanianaʻole Hwy Ste e111, Honolulu, HI 96825, USA

    Check-in time is 30 min. prior to departure. Please check-in at our office at 7192 Kalanianaole Hwy, Suite E111. We are located in the Koko Marina Shopping Center, behind Kokonuts Shave Ice and next to Kona Brewing Company. Parking is free. You may park anywhere in the shopping center.

End point

This activity ends back at the meeting point.

What To Expect

Make your way to Honolulu's Keahole Street to meet your group and friendly, experienced tour guide. 

Climb aboard a 50-foot (12-meter) catamaran and cruise up the coast of Oahu past great views of Koko Crater, Maunalua Bay, Diamond Head and the Koolau mountain range. 

When you reach the dive location, listen to a safety briefing and instructions on how to operate your underwater scooter. This self-propelled, electric scooter is an environmentally-friendly way to explore Oahu's extensive underwater world. Submerge on your scooter and follow your guide through schools of tropical fish, past living coral reefs and green sea turtles. 

After your turn on the scooter, don fins, a mask and snorkel to explore the water more fully or just relax on the boat's deck. Indulge in some snacks and drinks on board and listen to your guide talk about the history of the area.

At the conclusion of your 2-hour tour, the catamaran will return to your departure point.
1

Koko Marina Center

2

Maunalua Bay Beach Park

3

Diamond Head State Monument

Additional Info

  • Confirmation will be received at time of booking, unless booked within 5 days of travel. In this case confirmation will be received within 48 hours, subject to availability
  • Not wheelchair accessible
  • Near public transportation
  • Not recommended for pregnant travelers
  • No heart problems or other serious medical conditions
  • Most travelers can participate
  • Minimum age is 10 years old and minimum height is 4 feet (1.2 meters) tall
  • Please wear a swimsuit. Please bring a towel and sunscreen
  • Minimum numbers apply. There is a possibility of cancellation after confirmation if there are not enough passengers to meet requirements. In the event of this occurring, you will be offered an alternative or full refund.
  • Maximum weight is 350 lbs. Maximum height is 6'8". Waiver is required prior to adventure and participant must have no previous medical conditions; minors must have waiver signed by parent or legal guardian.
  • CHECK-IN TIME IS 30 MINUTES BEFORE DEPARTURE. MUST BRING PHOTO ID FOR CHECK-IN. The boat leaves PROMPTLY at departure time.
  • * Minors must be accompanied by a paying adult.
  • This tour/activity will have a maximum of 30 travelers

Cancellation Policy

You can cancel up to 3 days in advance of the experience for a full refund.

Traveler Photos

Gallery picture 1 (from a traveler's review)
Gallery picture 2 (from a traveler's review)
Gallery picture 3 (from a traveler's review)
Gallery picture 4 (from a traveler's review)
Gallery picture 5 (from a traveler's review)

Featured review

Terry_S
This was an awesome experience being underwater and still breathing air. Saw lots of fish and even a turtle swimming by. Staff was very professional and help you the entire time. They took time to explain everything so you knew exactly what to do. Just wish I was down there longer. Would definitely do it again. Great job everyone.

Reviews

4.8
based on 2,432 reviews
Total reviews and rating from Viator & Tripadvisor
Sort by: Most insightful

So much fun!

Suzan_M, Oct 2026
All of the crew members were amazing. They were informative and made sure that every one of the 12 family members had the best time. I would totally recommend this.

10/10 reccommend

Lisa_k, Oct 2026
This an incredible experience! I would absolutely do it again…10/10 recommend. The captains were so helpful and nice and made sure the experience was unforgettable.

Amazing Water Excursion

Geoffrey_G, Oct 2026
My wife and I thoroughly enjoyed our experience. The Captain and crew did a great job and the scooter was a blast to ride. There were so many fish that we got to see and they took some amazing photos and video of our experience for us to look back on. We can't wait to come back again and bring friends with us.

Just do it!

Cheryl_S, Oct 2026
Excellent! Felt very safe. Three kids on the boat from ages seven to 12. All three were able to do it. Don't miss this one!

An experience to remember!

Sherie_D, Sep 2026
My husband and I had such an amazing experience! I was a bit anxious at first but the staff was extremely helpful and I felt very secure once I got into the water. And experience to remember for sure.

Book it! Hurry!!

Caylee_K, Sep 2026
Absolutely AMAZING experience! The guides and divers were so friendly, informative, and made the entire experience easy and fun. The 1-on-1 time with a diver was awesome, and we got to see SO many turtles and different fish! Highly recommend booking the morning session! ☀️ Make sure to bring a towel and a bag for your belongings while you’re in the water. You won’t regret booking this experience!

This was a surreal...

Alexis_R, Sep 2026
This was a surreal experience! The crew was knowledgeable and funny! So good I did this on my birthday and it was the best experience! 10/10

Oh my, what an amazing...

Sandy_H, Sep 2026
Oh my, what an amazing adventure! I will definitely be telling everyone how awesome this is! The team of divers was top notch! I am so glad this was suggested to use by our daughter and son-in-law. This was an adventure I will always remember!

Super kind and helpful...

brandon_p, Sep 2026
Super kind and helpful crew. We had a great experience and would do it again 100%. The experience was one of a kind.

Great experience

McKenzie_H, Sep 2026
A cool experience especially if you aren't comfortable with snorkling or diving. Divers were very attentive and make sure you are comfortable during the whole experience. Snorkling opportunity while you wait on other participants to finish was a unexpected plus!

Tremendous Navigation Assistance

Tracy_S, Sep 2026
Great service. Guides were super helpful and assisted with navigation tremendously. Snacks and water provided.

Best alternative to diving

Robyn_K, Sep 2026
Definitely worth it. Everyone had fun and we saw lots of honu. We had a weak swimmer in our group and people that didn’t want to get SCUBA certified. This worked for everyone.

Great experience! Up close to marine life.

STEPHEN_M, Sep 2026
Fantastic! The divers assisting with the scooters and leaders of the tour were great. Got to see fish and turtles up close.

Unique Snorkel Event

James_G, Sep 2026
a really different way to snorkel and we saw some fish and a couple of turtles. Crew was very helpful and ensured we were never alone.

1st time, fun!

Nikki_B, Sep 2026
First time trying these scooters out! It was really fun. Great for those who aren’t great swimmers and mobility issues with swimming. All of the guides were great!

Amazing ! If you love the...

Jillian_E, Sep 2026
Amazing ! If you love the water and want to see beautiful ocean life, then this is the tour for you! So happy we decided to this they were very helpful took amazing pictures and videos of the experience and made us feel so safe ! 100% need to do again

Staff was incredibly...

Ashley_D, Sep 2026
Staff was incredibly friendly and patient with explaining how everything works. The actual experience itself was amazing!

Great time!

Paul_H, Aug 2026
This was our second time doing this. We brought 4 teenage boys and they had an absolute blast!! The crew was very good with our 4 year old who was just watching.

Excellent, Epic and a must do you’ll never forget this experience. The diver guides were so caring and helpful.

tina_s, Aug 2026
Absolutely brilliant don’t let age stop you I’m 60 and did it easily the divers with me were so friendly and helpful felt totally safe and cared for.

Great Experience

Janie_H, Aug 2026
The divers were very patient and caring. The ship owner was also a great conversationalist and motivator. The whole crew were amazing.

Awesome adventure! Highly

Jonna_M, Aug 2026
Sub scooter adventure was such a blast! I can't even swim and the crew made me feel totally safe the whole time, super patient and reassuring. Boone especially went above and beyond, so kind and attentive to little things without making a big deal out of anything. Made me feel comfortable enough to actually enjoy myself instead of stressing. Highly recommend if you're nervous in water like me!

Personal Submarine tour

Jill_S, Aug 2026
Don’t wait to go last just do it! It was amazing! Only complaint is that we paid for pics on the boat and still don’t have them :( we didn’t take our own pics & could’ve

Like swimming in an aquarium

Bruce_D, Aug 2026
This is a 6 star experience! I have a dozen scuba dives, and this was more fun than any of them. The dive masters are very attentive, the crew knowledgeable and friendly. No skills required except a smile on your face and a sense of adventure.

The crew and captains...

Steven_P, Aug 2026
The crew and captains were professional and fun the experience was unique and memorable would recommend.

Wonderful experience

Anita_C, Aug 2026
The tour was great and everyone there was so friendly & helpful As a non swimmer, they made me feel comfortable & enjoy my time under water

Bucket list

Jose_G, Aug 2026
Awesome,they have a diver with you at all times ,it was very cool bucket list item. Would definitely recommend this to family and friends

Scooter Experience

Latoya_S, Aug 2026
We had an incredible time on the submarine scooter tour! It was such a unique experience and definitely one of the highlights of our trip. The underwater views were nice and we were able to feed the fish from our scooters. The instructors made us feel safe and comfortable every step of the way. One of the best parts was finding out that some of the instructors were from the Midwest, just like us (Indiana/ Chicago). We had a great time chatting and sharing some hometown pride. Go Bears (Da Indiana Bears)....lol 🐻 The entire staff was friendly, knowledgeable, and made the experience so much fun. We highly recommend this tour to anyone visiting Hawaii. You won't be disappointed! One tip I'd absolutely recommend is taking Dramamine (or another motion sickness medication).

High recommended activity to do in Hawaii.

MarcusFlavio_D, Aug 2026
Great activity to do if you are ok getting deep in the ocean. We were 1 mile away from the shore and 10ft below the water sometimes. I saw turtles swimming by me, fishes eating out of my hands, and a lot of other marine animals. I Loved it. It made my last day in Hawaii so much fun! I highly recommend it.

Yes, Yes Yes!

Mickey_G, Aug 2026
No swimming experience needed, but you do have to duck you head underwater. It is loud, but SO worth it! Saw hundreds of fish and lots of sea turtles.

Great time had by all

Tim_U, Jul 2026
Staff was very friendly and knew what they were doing, one of the best excursions on the island being able to see the fish swim right up to you and eat out of your hands was great plus a sea turtle swam right past me
Member Pricing
From

$179.06

per person
Was $188.49(-5%)

up to 3 days in advance

Book ahead!
On average, this is booked 36 days in advance.

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