2 Best Sights in Ponce and the Porta Caribe, Puerto Rico

The eastern section of the Bosque Estatal de Boquerón is made up of miles of mangrove forests that grow at the water's edge. Boats from the dock in La Parguera can take you on cruises through this important breeding ground for seabirds. You can also organize a kayak trip.

This 9,900-acre United Nations Biosphere Reserve is a great place for hiking. An outstanding example of a subtropical dry forest, it has some 700 species of plants, from the prickly-pear cactus to the gumbo limbo tree, and offers superb bird-watching; its more than 100 species include the pearly-eyed thrasher, lizard cuckoo, and nightjar.

The popular Ballena Trail, which begins at the ranger station on Route 334, is an easy 2-km (1¼-mile) walk that follows a partially paved road past a mahogany plantation to a dry plain covered with stunted cactus. A sign reading "Guayacán centenario" leads you to an extraordinary guayacán tree with a 6-foot-wide trunk. The moderately difficult, 5½-km (3½-mile) Fuerte Trail leads to an old fort built by the Spanish Armada. It was destroyed in the Spanish-American War in 1898, but you can see ruins of the old observatory tower.

In addition to using the main entrance on Route 334, you can enter on Route 333, which skirts the forest's southwestern quadrant. You may also wish to explore the less-trafficked area west of the town of Guánica, off Route 325.