Running

The cool, quiet, morning hours before 8am are a good time to jog through the streets of Old San Juan. Head for the wide thoroughfares adjacent to El Morro and then San Cristóbal, whose walls jut upward from the flat ground. You might join Puerto Rico's governor, a dedicated runner, in making several laps around the seafront Paseo de la Princesa at the base of his home, La Fortaleza.

If you don't mind heading out into the island a bit from your base in Old San Juan, you might opt for a run through the palm trees of the Parque Central, near Calle Cerra and Route 2 in Santurce. Condado's Avenida Ashford is a busy site for morning runners as well.