Parque Nacional Balneario Seven Seas
This National Park near Fajardo has a beautiful beach that is relatively empty during the winter months. It’s also lovely in the summer, albeit more crowded, as it’s popular with the locals. You can pay a $5 fee to park inside and use the restroom facilities, or just park on the road and walk in, as all beaches in Puerto Rico are public. The parking fee helps pay for lifeguards and police patrol. Camping is available at $10 per day and, as with most parks in Puerto Rico, accommodation must be booked in advance and a permit obtained. This beach has beautiful sand and lovely waters, and most of the time has a Blue Flag status, so it’s a great place to take the kids.