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Glide across the world’s brightest bioluminescent bay on an electric catamaran in Vieques. This 40-minute evening tour offers intimate views of glowing waters—book ferry and lodging in advance.
Glide across the world’s brightest bioluminescent bay on an electric catamaran in Vieques. This 40-minute evening tour offers intimate views of glowing waters—book ferry and lodging in advance.
Verified experiences and guided adventures in the surrounding area.
Operated by Isla Nena Bio Bay Boat Tours · Esperanza, Vieques
Night settles over Vieques and the water begins to act like a low-burning ember — a slow constellation under your hull. On a 24-foot electric catamaran visitors glide across Mosquito Bay, watching the water flare green each time the boat’s wake disturbs a living tide of dinoflagellates.
easy.
40 minutes.
Suitable for all fitness levels; minimal mobility needed to board the 24-foot catamaran
Yes—ferry tickets and a confirmed overnight stay on Vieques are required before you can join the tour.
No—swimming is discouraged to protect the organisms and for safety during night operations on a boat.
The tour lasts approximately 40 minutes and operates with small groups (up to nine guests) on a 24-foot electric catamaran.
Tiny plankton-like dinoflagellates emit light when disturbed; shallow, sheltered water and mangrove nutrients help concentrate them here.
Vieques was used for decades by the US Navy; after military use decreased, conservation and tourism emerged, protecting areas like Mosquito Bay.
Operators limit lights, use electric propulsion to reduce disturbance, and ask guests not to apply lotions before boarding to protect the dinoflagellate population.
Isla Nena Bio Bay Boat Tours operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
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