Catch a boat leaving from a dock near the Hyatt Regency and cruise among the four narrow straits of Bocas del Dragón that separate Trinidad and Venezuela. Hop among several small islands in the channels: swim the coves at Monos and Chacachacare and spelunk the limestone Gasparee Caves (beware of fruit bats) on Gaspar Grande. Find other tour boats at the Trinidad and Tobago Yacht Club and the Trinidad and Tobago Yacht Association, both located in Chaguaramas, a straight shot west of Port-of-Spain by way of Wrightson Road.
Make a reservation to visit the nonprofit Asa Wright Nature Centre, a former coffee, cocoa, and citrus plantation. Take a walk with a naturalist through the protected rain forests of the Northern Range (10:30 a.m. and 1:30 p.m.; included in $10 admission fee) or book a more strenuous bird- and turtle-watching excursion with Caligo Ventures.
Hear a steel-drum band rehearse in the Laventille Panyards (off Old St. Joseph Road). The groups compete every year during Panorama, the steel pan Super Bowl equivalent held during Carnival, but the outdoor practices are open to the public. Schedules vary, so ask your hotel clerk or a cabbie for more information.