Tours and Tickets to Experience Bioluminescent Bay (Mosquito Bay)

There are plenty of ways to experience the Bioluminescent Bay (Mosquito Bay). Looking at ratings and reviews previously given by customers, these are the best Bio Bay tours available right now:

• Bioluminescent Bay Kayak Trip from Vieques
• Overnight Bio Bay Kayak Tour in Vieques Island

Access to the Bioluminescent Bay, also known as Mosquito Bay, on the island of Vieques in Puerto Rico is typically through guided tours. Guided kayaking tours of the glowing waters range in price from US$50 to US$60 per person, while electric boat tours with a tour guide are generally priced higher, around US$130 per person.

Puerto Rico is home to three bioluminescent bays, with Bioluminescent Bay believed to be the world’s brightest example of this natural phenomenon. Also known as Mosquito Bay or Puerto Mosquito, the glowing blue is created by organisms—dinoflagellates called Pyrodinium bahamense—that produce a burst of light when they come into contact with other organisms or are disturbed in some way.

The best time to visit Bioluminescent Bay is when it’s darkest. It’s worth considering the phases of the moon when planning your visit, as the glowing effect is better during nights with a new or crescent moon. Also, the glow is most noticeable between June-November, when the water is warmest and the organisms are more active. As tours typically take place at night, you’ll need to book an overnight stay in Vieques, as the ferry stops running in the early evenings.

No, it is against the law to swim in Bioluminescent Bay—any chemicals you apply to your skin, such as DEET insect repellent and sunscreen, could harm the water’s balance. The bay can be accessed by kayak only. You are allowed to swim in La Parguera Bioluminescent Bay.

Bioluminescent Bay is located to the east of Puerto Rico's main island on the small island of Vieques. You can reach Vieques by ferry from Ceiba in east Puerto Rico. Alternatively, you can take a small plane from Isla Grande airport in San Juan. Once there, book a kayaking tour of the bay.

Yes, it is worth visiting Bioluminescent Bay—it is a natural phenomenon that you need to see to believe. For the best bioluminescence experience, plan to visit during a new moon and book a glass-bottom kayaking tour. Some travelers do feel that the effort required to reach Vieques isn’t worth it, instead opting to visit Laguna Grande, which is closer to San Juan.

No, you can’t visit Bioluminescent Bay independently. The area is protected by Puerto Rico’s Department of Natural and Environmental Resources and only licensed tour operators are permitted to bring visitors here. This helps maintain a minimal level of disturbance to the organisms in the bay. You are allowed to explore La Parguera Bioluminescent Bay on your own.