Cozumel's classic family beach park, a short ride south of downtown, where a protected cove, a freshwater lagoon area and a snorkel-ready reef edge sit inside a garden of palms and Maya replicas. It is the easiest first taste of the island's marine life, and a favorite with cruise passengers.
The classic Cozumel boat trip: a half-day snorkel across the Cozumel Reefs National Park, with stops on the Palancar and Columbia reefs and a drift over the shallow sandbar of El Cielo, where starfish carpet the bottom. Clear water, easy for beginners and sold from every pier.
A small-group four-hour snorkel outing that leaves from the waterfront in San Miguel and pairs sea turtles with calm, shallow sites. Snorkel gear, snacks, soft drinks and two beers are included, and groups are capped at 22.
Cozumel's main archaeological site, a sacred Maya pilgrimage center to the goddess Ixchel set in jungle in the middle of the island. A short guided walk among temples and sacbe roads, easily combined with a beach stop on a half-day island tour.

The wild southern tip of the island: a lighthouse and navigation museum, a lagoon where crocodiles are spotted from a tower, and beaches facing the open Caribbean. Most visitors go by jeep or buggy for a day that mixes nature, scenery and a beach lunch.
A two-hour dry-and-comfortable descent along a reef wall, with big windows, an air-conditioned cabin and a live guide. It is the easy way to see the underwater world on Cozumel without getting wet, ideal for non-swimmers and anyone who would rather skip a mask.
The 45-minute ferry link between Cozumel and the mainland, ideal for visitors based in Playa del Carmen who want a day on the island, or for Cozumel guests who want a day of shopping and dining on Fifth Avenue. Tickets are sold for the round trip.
A muddy, fun, guided ATV ride into Cozumel's interior, ending at a jungle cavern with a clear natural swimming pool. One of the best-reviewed adventure tours on the island, with more than a thousand traveler reviews on Viator.
Cozumel is one of the world's great dive destinations, known for warm, clear water, gentle drift dives and walls like Palancar and Santa Rosa. A two-tank morning boat dive for certified divers is the classic outing, with a guide, tanks and weights included.
A waterfront museum in a 1930s building that was one of the island's first hotels, with eleven permanent rooms on Cozumel's nature, Maya past, history and culture. A cool, air-conditioned stop three blocks from the Fiscal Pier, and a good rainy-day or midday option.