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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
Amazing!!!
The tour was Amazing. Guidewas awesome! We did it for my daughters 16th Birthday and she loved it can't wait to come back.
Ann_C, Dec 2021

Recent reviews from experiences in Vieques

star-4
Unique experience
Ben_N, Jan 2022
Overnight Bio Bay Kayak Tour in Vieques Island
Bioluminiscence was faint, it turns out it’s only really noticiable in times with high winds and no moon at night, which is something they could probably be more transparent about.
star-4
Nice 1 hr (3.2 mile) kayak tour of the bio bay
John_S, Jan 2022
Overnight Bio Bay Kayak Tour in Vieques Island
Pros, environmentally sensitive, wonder of the biological world, good guide, small group. Fairly priced. Cons, not a clear kayak, double kayak not a single kayak as shown in the photos. Pick up is not from your hotel but a central location. I wouldn’t say it was represented in the description clearly.
star-4
The instructor was...
Rene_V, Dec 2021
Overnight Bio Bay Kayak Tour in Vieques Island
The instructor was awesome, the experience was ok but a sudden storm while being in the middle of the bay made it more fun and interesting
star-5
Great guide local business
Omayra_M, Dec 2021
Overnight Bio Bay Kayak Tour in Vieques Island
Great group Spanish speaking. Organized and on time. Local business who employ local young adults. Fun guide and a relax tour. Pristine co sitio a on the water.
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
G and M
gregory_r, Sep 2021
Overnight Bio Bay Kayak Tour in Vieques Island
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
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
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
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
A shiny experience
Lorka_F, Jul 2021
Overnight Bio Bay Kayak Tour in Vieques Island
An incredible experience with an excellent tour guide who taught us a little history and information about the microorganisms of Mosquito Bay.
star-5
First time in Puerto Rico
jEWEL_B, Jul 2021
Overnight Bio Bay Kayak Tour in Vieques Island
The tour guide was very knowledgeable. This was my first time on a kayak and it was the best first experience.
star-5
Wonderful experience
Sandeep_N, Dec 2021
Overnight Bio Bay Kayak Tour in Vieques Island
Just amazing, thank to our tour guide adelle. She is very knowledgeable and explained us about the mosquito bay. We did a 2 person kayak and stopped at two spots in mosquito bay. The second one is more shinier than the first one. It’s just a life time experience as you see the bio luminescent light as you kayak or play with your hands in water. A must do life time experience if you are planning to come to puertorico or viques. Remember this is I think the worlds best place for the bio luminescent kayaking as it is more shinier than other places.

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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