Leigh Ann Henion/For The Washington Post via Getty Images Mark Martin Bras was a child the first time he saw Puerto Rico’s famous bioluminescent ... evening to Mosquito Bay, and he was ...

The Guinness Book of World Records has acknowledged Mosquito Bay in Vieques as the brightest bio bay on Earth. Thousands of tourists visit Puerto Rico to experience the bioluminescent bay phenomenon.

The Bio Bay is a rare breeding ground for billions of single-celled organisms called dinoflagellates. (There are three bioluminescent sites located in Puerto Rico, a testament to the Caribbean ...

Like at Mosquito Bay, tour operators offer multiple time slots per night for kayak outings. Kayakers in Bahia Mosquito create bioluminescent wakes in Vieques, Puerto Rico, Sept. 23, 2000.

This south Vieques beach might not sound like much, but it's one of travelers' favorite experiences in Puerto Rico ... of bioluminescent dinoflagellates live in each gallon of bay water, and ...

SAN JUAN, Puerto Rico (AP) -- Puerto Rico's environment agency is trying to better protect a bioluminescent bay that's considered one of the brightest in the world. Mosquito Bay attracts thousands ...