This 1½-mi-long (2-km-long) natural gully is really a collapsed limestone cavern, once part of the same underground network as Harrison's Cave. The Barbados National Trust protects the peace and quiet here, making it a beautiful place to hike past acres of labeled flowers and stands of trees. You can see and hear some interesting birds—and, with luck, a native green monkey. There are limited scheduled free guided tours, and a guide can be arranged with 24 hours' notice. Otherwise, the 30- to 45-minute walk is self-guided.
Welchman Hall, St. Thomas, Barbados