The triple-tiered Argyle Falls are on the Argyle River, just west of Roxborough on the southeastern coast. In addition to the entry fee, you must pay an authorised guide to lead you on the 20-minute hike up to the falls. Along the way you can cool off in a series of natural pools.

Established in 1765, this is the oldest forest reserve in the Caribbean and provides excellent bird watching, plus several hiking tracks. Authorised guides at the trailhead offer two-hour hikes through the forest to the Main Ridge lookout hut, where you'll enjoy sweeping views of Bloody Bay and the offshore Sisters Rocks.

Tobago's best remaining colonial fortification (1779) is well worth a visit for its history, coastal views and parklike grounds. Cannons line the fort's stone walls, and there's a working lighthouse, a shop selling local crafts and a small museum with displays on Amerindian artefacts and Tobago's colonial history.