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Bioluminescent Bay (Mosquito Bay)
Bioluminescent Bay (Mosquito Bay)

Bioluminescent Bay (Mosquito Bay)

Puerto Mosquito, Vieques, Puerto Rico

The Basics

Any contact with the water—by the boat, a paddle, or a part of the body—makes the water glow bright neon blue and green. Jump in for a neon-lit swim, cruise over the water in a pontoon boat, or board a kayak to paddle through the bay. Nighttime kayak tours typically allow you to learn about the biology of dinoflagellates and their interaction with the Vieques ecosystem.

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Overnight Bio Bay Kayak Tour in Vieques Island
Overnight Bio Bay Kayak Tour in Vieques Island
$56.99 per adult
Traveler Favorite
G and M
Amazing wonderful experience loved it was a great time bio tour guide was well informed and made us all feel welcome thank you to the driver she gave us a lift to hotel
gregory_r, Sep 2021

Recent reviews from experiences in Vieques

star-5
A must do!
John_D, Dec 2021
Bioluminescent Bay Kayak Trip from Vieques
Glow and Louis were amazing guides and gave us a ton of information about why the bay glows. It is a must do when In vieques
star-5
Experience like no other
crrose16, Nov 2021
Bioluminescent Bay Kayak Trip from Vieques
Great experience. The guides are great! Very knowledgeable and they make you feel safe the whole time. Lulu and her partner who’s name escapes me where fantastic. I highly recommend anyone visiting Vieques experience this tour.
star-4
Mosquito Bay is...
Krista_T, Nov 2021
Overnight Bio Bay Kayak Tour in Vieques Island
Mosquito Bay is spectacular. The tour could have been longer and more instruction on kayaking. The bioluminescent water was a wonderful experience.
star-5
Magical experience
Lani_S, Nov 2021
Bioluminescent Bay Kayak Trip from Vieques
Our two guides. Luis and Dominic were so professional and friendly. We were a bit nervous before the trip but they taught us well and were super helpful. We highly recommend this group and had a truly awesome time.
star-4
Unique experience
Juan_B, Sep 2021
Overnight Bio Bay Kayak Tour in Vieques Island
The guide made the trip worthwhile Departure was 30 min late. Customers should be forewarned to spray with XTRA mosquito repellent
star-5
The guides were very...
Deep_B, Nov 2021
Bioluminescent Bay Kayak Trip from Vieques
The guides were very professional and knowledge. This tour was a really fun and amazing experience. I highly recommend doing it when on Vieques.
star-5
Great bio bay trip
James_P, Nov 2021
Bioluminescent Bay Kayak Trip from Vieques
The luminescence on the bio bay was extraordinary for our trip! It was also an excellent night for star gazing!
star-5
Once in lifetime...
Noor_M, Oct 2021
Bioluminescent Bay Kayak Trip from Vieques
Once in lifetime experience. Its so dark you can see the starts shining so bright. Great tour guide.
star-5
Beautiful but short tour
Carissa_A, Sep 2021
Overnight Bio Bay Kayak Tour in Vieques Island
Adel was a very friendly and communicative guide, before and during the tour! Mosquito bay was very amazing and it was cool to see the water glow! The tour was pretty short though we were out on the water for maybe 30 mins.
star-5
Great time
Trevor_O, Oct 2021
Bioluminescent Bay Kayak Trip from Vieques
Tour guides were very charming. Not much glow but the moon was bright. Def try and schedule for a dark night. Still really fun!
star-5
Wonderful Experience!!
Kiara_W, Aug 2021
Overnight Bio Bay Kayak Tour in Vieques Island
Very professional, nice and helpful and lets not forget very patient!!!!! Thank you all for doing such a wonderful job☺️
star-5
Great information! Perfect night
Chris_K, Oct 2021
Bioluminescent Bay Kayak Trip from Vieques
Very informative on mosquito bay, great job on history. I would definitely use them again. I did some research on when to go and it is the best to do when no moon

Things to Know Before You Go

  • Nighttime tours require a stay overnight on Vieques Island; the tour company can typically provide recommendations for hotels or guest houses.

  • Be sure to apply bug repellent, as Mosquito Bay lives up to its name.

  • Mosquito Bay is the only bioluminescent bay in Puerto Rico where swimming is permitted.

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How to Get There

Mosquito Bay is located on the southern shore of Vieques, which can be reached by ferry from Fajardo on the main island of Puerto Rico. Reaching the bay is an adventure in itself that requires a 10-minute drive down a very bumpy and rutted 4WD track. Tours typically provide transportation to the bay from the town of Esperanza on Vieques Island.

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When to Get There

The dinoflagellates in Bioluminescent Bay are active year-round but are best seen during the new moon, when the sky is darkest and the water glows brighter by comparison. Tours typically do not operate the day before, during, and after the full moon, when the organisms are difficult to see.

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Must-See Vieques Attractions

Isla Vieques was under the control of the US Navy for 60 years and thus remains largely undeveloped. The small island is home to unspoiled rain forest dotted with pristine beaches and archaeological sites including the Hombre de Puerto Ferro, where skeletal remains up to 4,000 years old were discovered. Along with the famous bio bay, Vieques is host to some excellent snorkeling, especially at Blue Beach (Bahía de la Chiva).

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