Luquillo Beach
One of the closest beaches to San Juan without development and establishments is Luquillo Beach. It's great sand and with coconut palm trees make it one of the most popular beaches on the island. The water is generally calm for swimming since it is a bay and a reef far away breaks the waves. The beach stretches on for almost a mile and you could continue exploring east so there is opportunities for long walks. Becasue this is a paid beach (nominal fee), there are modern restrooms, showers, and changing rooms with lockers. A good day trip is to combine this beach with a morning spent hiking at nearby El Yunque National Forest.
Caribbean Travel
Palms near the parking area
Walking to the beach
Walking around the point