El Yunque National Forest is open daily. 787-888-1880; www.fs.fed.us/r8/caribbean. The wettest month is May.
''Bio Bay'' kayak tours ($30 per person) are offered nightly by Blue Caribe Kayaks (787-741- 2522; www.bluecaribekayaks.com) in Vieques, an hour-plus ferry ride from Fajardo.
Rio Camuy caving trips are offered by Aventura Tierra Adentro, 787-766-0470; www.adventurespr.com. Minimum age is 15; participants under 21 must be accompanied by an adult. M $170 plus tax, per person.
We stayed at the recently refurbished El San Juan Hotel on the beach in the Isla Verde district of San Juan, with a wonderful, Las Vegas-like pool area. 866-317-8935; www.elsanjuanhotel.com. Rooms from $155.
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