Cozumel is Mexico's top diving destination and is one of the premier scuba diving destinations in the western hemisphere. The island abounds with dive shops, most willing to give you a scuba class (resort course) and take you out if you are not yet certified. A boat dive for certified divers (two tanks) will cost around US$70, plus any equipment rental and Marine Park Fee. Most dive sites are located well south of the city proper, as are a number of dive shops if you want a short boat ride. Most diving in Cozumel is drift diving, where you are dropped off by the boat at the beginning of the dive, are carried along the reef by the current, and picked up at the end of your dive by the boat. There is some shore diving, but it is limited compared with what you can enjoy further out and places like Palancar Reef and the walls. Along with other marine life divers are able to see seahorses and eagle rays and turtles especially during turtle nesting season sees large numbers of Turtles on Cozumel's beaches during nesting seasons.
- Aldora Divers. Training, certification and fast 6-person boats with high capacity steel tanks and long surface intervals, usually at Palancar Beach Club. Rental equipment. Night Dives. Nitrox available. Villa Aldora room and suite rentals.
- Aqua Safari. Training, certification and two types of daily dive trips (fast or large boat). Good company but they tend to pack more people on a dive trip (up to 16 on the big boats). When the wind is blowing and the small boats cannot go out, their seaworthy boats often still can provide service. They also have a 8-person fast boat available. 1 tank afternoon dives are a very good deal. Night dives Tuesday, Thursday, Saturday. Nitrox Available. Hotel packages with Safari Inn, Cozumel Palace and several other hotels.
- Blue Angel. Training, certification and equipment rental are available from this dive op. Three two tank dives available each day with the additional options of Twilight and Night dives given a party larger than 3. PADI instruction available up to Instructor level. Excellent staff and crew.
- Blue Magic. Compared to most other companies here, operates much faster and smaller (8-person) boats with good local divemasters. Office in downtown Cozumel, with free taxi service.
- Blue XT~Sea Diving. Training, certification, equipment rental, and nitrox are available from this dive op. Personalized service, max 6 divers per fast boat. They'll keep and clean your dive gear (except wetsuit) if you wish and have it on the boat the next morning. Night and Afternoon dives based on demand, and hotel packages with decent savings are offered.
- Bottom Time Divers. Training, certification and 6 pack diver fast boat are available from this very popular family run dive op. Owner/instructor with excellent local knowledge, beach SI's and dive gear overnight wash and rinse etc. Private groups accepted.
- Buena Ventura Diving. A small, personable dive outfit dedicated to the specialized needs of its diving clients.
- Cozumel Divers, ☏ +52 5576950997. Diving tours, training, certification, boats diving, private diving, this dive center usually works with small groups. (updated Apr 2022)
- Deep Blue. Training, certification, nitrox, technical and known for fast boats. At most 8 divers with 2 divemasters or as few as 4 divers with 1 divemaster. Rental equipment. Night dives. Hotel and dive package is available through numerous hotels. Dive shop is in town across the street from La Choza. Divers are usually called the day before diving to arrange dive location and possible divemaster.
- Dive Paradise. Training, certification and two types of daily dive trips (fast or slow boat). Night dives. Numerous dive and hotel packages. Several dive shops. Rental equipment. In Cozumel since 1984.
- Living Underwater. Small, personalized service offering steel 120s (super-long dives). Best for advanced divers.
- Mestizo Divers. Small groups of divers on a modern fast boat. Custom trips to the dive sites of your choice. When not diving they also offer fishing charters.
- Ocean Tours Scuba and Water Sports (At Cozumeleño Beach Resort & Hotel), North Hotel Zone, ☏ +52 9878721379, oceantours@usa.net. Daily 07:00-19:00. Since 1986, Laura and José De la Fuente have been hosting and diving with Cozumel´s visitors. PADI scuba dive operation, fully equipped with top of the line gear available. Dive Trips for certified divers, scuba school all levels, equipment rental, repair and retail. Deep sea fishing charters.
- Scuba Mau. Training, Discover Scuba, Hotel/Dive packages, Dive trips. Utilizes small boats (six people) with a well-trained but personality-filled dive staff. Located next to the Villablanca Hotel. $60 per day for two tanks, US$10 per day for full equipment rental.
- Blue Note Scuba, info@bluenotescuba.com. This dive center is owner-operated and has a fast boat. Personalized service and training with local divemasters. (updated Jan 2022)
