Relaxed Chankanaab Park - or Parque Chankanaab - is a lovely and laid-back "eco archaeological park," just south of the town of Cozumel. There are several attractions on dry land, including faux Mayan ruins, pleasant gardens, dolphin and sea lion shows, and good seafood.
The main attraction, however, is the wildlife rich undersea park, which you can explore with rented snorkel equipment. They also offer regular diving (you must have PADI certification) and the Sea Trek Adventure, like a resort dive with a breathing helmet but no certification necessary. You could also swim in a tank with dolphins, manatees and sea lions for an extra fee.
Chankanaab Park (Parque Chankanaab) is one of Cozumel's premier attractions, and offered as a popular tour to the cruise ship crowd. Thus, it can get packed right after one of those behemoths pulls into harbor. On the upside, this also means that service is prompt and English almost universal throughout the park.
There are plans to extend San Miguel's public bus service to the West Coast's most popular beaches, which will almost certainly include this one. Otherwise, rental vehicles and taxis are the way to go; there are almost always taxis lined up outside the park to take day trippers back to their hotels.
Experiences including swimming with dolphins, snuba, seatrek, snorkeling, and scuba diving tours are not included in Park admission.
