Snorkeling excursions to the nearby reef are a must; some incredible sites for discovering coral formations and sea life surround the island. Rent a golf cart and give yourself a tour of the island. Be sure to hit Punta Sur or South Point, it offers some spectacular views of the sea, waves crashing on the rocky cliffs and a large population of iguanas. You'll feel like you're on the edge of the world.
The island boasts many small hotels in town and on the beach, and some larger resorts have started to pop up or are in development. Isla Mujeres is a popular destination for longer term trips with many vacation apartments available to rent. The center of town has many small shops and restaurants; there are ATM's and banks and many amenities.
Next: Isla Blanca