AquaWorld: Snorkeling, scuba, jetski tours, and other water activities in Cancun and Cozumel, with transfers from other sites on the coast.
Mayakoba Golf Classic: Information on PGA tour event at El Camaleón golf course.
Ocean Quest Dive Center: Ocean and cave diving from Cozumel and Playa del Carmen. They list destinations and classes.
Punta Pelicano Flyfishing Lodge: Ascension Bay. Information on accommodations, guides, and packages.
Scuba Mex Dive Shop: Dive shop located at Paamul, near Playa del Carmen, offering reef and cavern diving, dive instruction.
Xcaret Cancun: Ecological park and Mayan-themed family entertainment center located near Playa del Carmen with tours and online reservations.
Xel-Ha: A water park near Tulum describes their dolphin swims, snorkeling, and other activities.