Experience the Magic of Mosquito Bay, the Brightest BioBay in the World
Biobay Vieques Tour
Puerto Mosquito (Mosquito Bay) is located on the southern shore of the island of Vieques. This magical bioluminescent (biobay vieques) has been officially declared the brightest recorded in the world by Guinness Book of World Records 2008. Please don’t leave Isla de Vieques without taking a tour of this magnificent and magical natural wonder. It will be a magical, priceless memory to remember for a lifetime.
It is best experienced during a “New Moon” phase, so we’ve included an interactive moon phase calendar below to help you plan your trip accordingly. In the waters of Mosquito Bay there are organisms named Pyrodinium bahamense, Dinoflagellates (dinos) and These “dinos” are responsible for this amazing natural phenomenon. When the “dinos” come into contact with another organism they produce a bright burst of blue ligh
Vieques island bioluminescent bay is the best bay around Puerto Rico – and one of the last that remain on the planet! Experience this rare phenomenon of nature as you glide through the tranquil surrounded by mangroves and teeming with sea life above and below the still water.
- Tour Duration: 1.30 hours – Sunset Session 7pm to 8:30pm / Evening Session 9:00pm to 10:30pm
- Days of Operation: Every day
- Sunset Session: 7:00 pm – 8.30 pm
- Evening Session: 9:00 pm – 10:30pm (Only if 7pm is full , we open the 9 pm session)
- Tour Distance: 1 mile each way
- Ages: All family members welcome / physically fit to handle a kayak with paddles (children 5 yrs+)
- Location: Vieques Sun Bay, Vieques, Puerto Rico
- Cost per person*: $50 p/p (We can do $45 for large groups more than 6) Children under 10 pay $30
- Max Weight: For a two adults kayaks 575 pounds.
Book Biobay Tour Here!
One of the most 50 Most Romantic Places on Earth
Once you slip your body into Mosquito Bay, a bioluminescent lagoon off the island of Vieques, you’ll have forgotten the exhaust fumes. Millions of “stars” (actually, they’re microscopic organisms in the water) light up with a stunning blue-white glow, and scatter with every splash you make.
With each paddle stroke, the girls stir up millions of tiny dinoflagellates (dy-no-FLAH-juh-luhts). When stirred at night, these plantlike life-forms glow beautifully and each gallon of Mosquito Bay water holds some 750,000 dinoflagellates.
On the island of Vieques off the coast of Puerto Rico, Mosquito Bay’s dinoflagellates give off their bioluminescent (by-oh-loo-mih-NESS-ent) light from dusk until dawn. “In other parts of the world, bioluminescence is seasonal,” explains Sharon Grasso, a tour guide on Vieques. “But here, the water glows brightly year-round.”
Each night Grasso shows off the natural beauty of the bay. Passengers stare in awe as the tour boat leaves a glittering trail. They dip their hands in the water, leaving greenish-blue trails of their own.
Mosquito Bay’s displays are threatened, however. Bright artificial light from nearby developments can outshine the natural glow. Pollution, destruction of mangrove trees, dredging, land development, and overuse of the bay’s water can kill the fragile dinoflagellates. “We can’t let the lights go out,” says Grasso. “The magic of Mosquito Bay should live on forever.”