If you'd like to use the tennis courts at a property where you aren't a guest, call in advance for information about reservations and fees.

Club Tennis de Isla Verde. These four lighted courts are open to nonmembers at $20 per hour for up to four people (daily 8 am–10 pm). Reservations are required. Isla Verde Park, Calles Emma at Delta Rodriguez, Isla Verde, San Juan, n/a Puerto Rico, 00913. 787/727–6490; 787/642–3208.

Parque Central Municipio de San Juan. The Parque Central Municipio de San Juan has several lighted courts. Fees are minimal for one hour of tennis. You can also bike, walk, or run throughout the park's trails, or exercise on the popular racetrack. There is a $2 fee to access the park by car; it's free for pedestrians. Calle Cerra, exit on Rte. 2, Santurce, San Juan, n/a Puerto Rico, 00936. 787/480–2980.