Puerto Rico·United States
Photo: Edgar Torres · Wikimedia Commons (CC BY 3.0)
Mosquito Bay on Vieques holds an extraordinary density of glowing dinoflagellates, fed by the surrounding mangroves and kept in the bay by its narrow mouth. On moonless nights every paddle stroke and fish trail lights up.
In season: Year-round · Peak: Jan–Apr
Guided night tours by kayak or electric boat; swimming is banned to protect the bay. Brightness depends on the moon and recent weather.
Take the ferry or a short flight to Vieques and book a licensed night tour around the new moon.
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