Things to Do in Puerto Rico — From El Morro to Bioluminescent Bays, Rainforests to Wild Horse Beaches By Travel Tourister | Updated March 2026 Puerto Rico is the most activity-dense island in the Caribbean — a place where you can walk 500-year-old Spanish colonial cobblestone streets in Old San Juan in the morning, hike … Continue reading 50 Best Things to Do in Puerto Rico 2026: Ultimate Activities Guide