The Fajardo "Biobay"

The bioluminescent bay in Fajardo is a must-see attraction for many, both tourists and locals. Tour operators send out groups of 10-40 people in double ocean kayaks, accompanied by 3-6 guides. The guides provide on-land kayaking instruction prior to the tour, as well as a brief explanation of the biology behind the "biobay." A 15-minute nighttime paddle down a narrow mangrove channel brings groups out into the lagoon. Tours generally spend 20-25 minutes swimming in the lagoon, which lights up when disturbed. This is a very impressive spectacle which cannot be captured properly by cameras. If at all possible, try to make a trip to the biobay during your stay.

Some visitors are tempted to avoid the kayak ride, opting instead to go with one of the motorboat operators who also run tours into the bay.  There's nothing wrong with that, except that the motorboats are gradually killing off the microorganisms that light up the lagoon, and any visitor who takes a ride with one of these operators is contributing to the demise of another natural wonder.  But do whatever you want -- who cares, right?

Pictured above is the area in Las Croabas where the kayak tour companies pull up and launch.  Be sure to have warm clothes and a dry towel waiting for you when you get back to your car; it can feel pretty cold at night.  If you really want to bring a camera, make sure you bring a dry-bag as well.  Most tour operators provide small snacks and refreshments at the end of the tour.

Directions:

Take 53 north to the first stop light. Turn right onto 194. Stay on this road all the way to the end, at the large picnic area circled by the road. This is where the tour operators pull up. They bring large trailers full of kayaks and life vests.