Puerto Rico, officially known as the Commonwealth of Puerto Rico, is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the U.S. Virgin Islands and the British Virgin Islands.

Puerto Rico is only 100 miles long by 35 miles wide, making it the smallest island of the Greater Antilles. Puerto Rico (Spanish for 'rich port') consists of an archipelago that includes the main island of Puerto Rico and several islands: Vieques, Culebra, Mona and numerous islets.

In Puerto Rico, you can zip line over a high forest canopy. You can rappel down a deep cave. You can paddle through a glow-in-the-dark bioluminescent bay. All in one day.