Things to Do in Cozumel

Cozumel is a 48 km × 16 km island 18 km off the coast of Playa del Carmen. It sits on the Mesoamerican Barrier Reef — the second-largest reef system in the world — which makes it one of the top diving destinations in the Western Hemisphere. The western (lee) side of the island has clear, calm water; the eastern (windward) side is rougher but has more isolated beaches.

Diving

This is the primary reason most visitors come to Cozumel. The Santa Rosa Wall, Palancar Reef, and Colombia Deep are the headline sites — vertical walls and swim-throughs with excellent visibility (typically 30+ metres). Water temperature is 25–28°C year-round. Diving is accessible to beginners (there are many reef tops at 5–12m depth) and offers advanced options (drifts, walls, deep dives). Dozens of dive operators line the main waterfront in San Miguel; most offer 2-tank dive packages from USD 70–90.

Snorkelling

The reefs are accessible without scuba gear. Palancar Gardens (a shallower section of Palancar Reef) has excellent snorkelling — book a snorkelling boat tour from the pier in San Miguel (~USD 35–45 including gear). Columbia Shallows is another good option. The water off the beach clubs on the western coast also has decent snorkelling directly from shore.

San Gervasio ruins

The only accessible Mayan site on the island, dedicated to Ixchel (the Mayan goddess of fertility and medicine). Women in pre-Hispanic times made pilgrimage to Cozumel specifically to visit this shrine. The ruins are modest compared to mainland sites — more historically significant than visually dramatic — but worth a visit combined with a scooter day around the island. Located in the centre of the island, 8 km north of San Miguel. Entry ~MXN 110.

Scooter tour of the island

The standard way to see Cozumel beyond the town. Scooters rent for ~USD 35–45 per day from shops on Avenida Rafael Melgar (the main waterfront road). The circuit: drive the cross-island road to the eastern coast, stop at Playa Bonita or Punta Morena, continue south to the Punta Sur Ecological Reserve (lighthouse, lagoon, crocodiles, beach — entry ~MXN 200), then back via the southern coastal road. A full day.

Beach clubs

The western coast has several beach clubs accessible by taxi from the pier. Mr. Sanchos and Paradise Beach are the most established (day passes ~USD 20–40 including food and drink credit). If you just want the water and a sunlounger without a set package, smaller operations toward the south are quieter.

Getting to Cozumel

Passenger ferries run between Playa del Carmen and Cozumel every 30–60 minutes, operated by Ultramar and Winjet. Journey time: 35–45 minutes. Cost: ~MXN 240–280 each way. Ferries also run from Puerto Morelos (fewer services, same crossing time).