Fajardo: Kayaking in Puerto Rico offers guided biobay trips at night and snorkeling trips in the mornings at Seven Seas and on Culebra Island. . On weekends they rent kayaks on the beach at Balneario Seven Seas.. These are double, 'sit on top' kayaks and rent for $10 per person per hour.

Vieques: Tom offers an ecotour and biobay trip through the mangrove canals, to the beach then into the biobay at dusk. A wonderful and memorable experience.