Part of the Chac Mool system, Kukulkan is a cavern dive renowned for its spectacular light effects. On sunny days, laser-like beams of light penetrate the cavern, creating a breathtaking spectacle. The halocline here is also very impressive.

Tajma Ha is a beautiful cavern dive with stunning stalactites and a series of sinkholes that let in beautiful light. The dive passes through the 'Points of Light' room, where sunlight shines through tiny holes in the ceiling, creating a star-like effect.

Cenote Xunaan Kab is a hidden gem located in the heart of the Yucatan Peninsula. This cenote features stunning underwater caves and vibrant marine life, making it a perfect spot for both novice and experienced divers. The crystal-clear waters allow for excellent visibility, and the unique rock formations create a breathtaking underwater landscape.

Champagne Reef is a unique and famous shore dive where geothermal vents in the seabed release continuous streams of warm bubbles, creating the feeling of swimming through a glass of champagne. The area is also great for macro life.

Champion Islet, near Floreana Island, has some of the most pristine and beautiful coral gardens in the Galapagos. It's a fantastic spot for interacting with playful sea lions and for finding macro life like the endemic red-lipped batfish.

Champion Islet, near Floreana Island, has some of the most pristine and beautiful coral gardens in the Galapagos. It's a fantastic spot for interacting with playful sea lions and for finding macro life like the endemic red-lipped batfish.

Champion Islet, near Floreana Island, has some of the most pristine and beautiful coral gardens in the Galapagos. It's a fantastic spot for interacting with playful sea lions and for finding macro life like the endemic red-lipped batfish.

Chandelier Cave is a unique cave system near Koror, Palau. It consists of five separate, air-filled chambers connected by underwater tunnels. Divers can surface in each chamber to see the stunning stalactite formations that resemble glittering chandeliers.

Chankanaab Park offers a very easy and popular shore dive. The shallow reef is home to a variety of sunken statues, including a Christ and a Virgin Mary, and is teeming with friendly reef fish.

The Channel Islands National Park off the coast of Southern California offers a spectacular cold-water diving experience. The main attraction is swimming through the majestic, towering kelp forests, which are home to playful sea lions and a unique array of fish.

Charlie's Shoal is a large, pristine coral reef off the coast of St. Eustatius. Due to its protected status and the low number of divers, the reef is in exceptional condition, with some of the highest hard coral coverage in the Caribbean.

Charlie's Shoal is a large, pristine coral reef off the coast of St. Eustatius. Due to its protected status and the low number of divers, the reef is in exceptional condition, with some of the highest hard coral coverage in the Caribbean.

Chebeh Island offers some of the most dramatic underwater topography at Tioman, with giant granite boulders creating a labyrinth of swim-throughs and canyons. The currents can be strong, attracting blacktip reef sharks and barracuda.

Checkers is a beautiful reef dive known for its large population of honeycomb moray eels. The reef has numerous cleaning stations and is a great place to see a huge variety of fish life in easy conditions.

The National Diving & Activity Centre at Chepstow is a massive, flooded quarry. It's the UK's premier inland dive site for training, and is filled with numerous wrecks, including a massive passenger jet, helicopters, and buses.

The National Diving & Activity Centre at Chepstow is a massive, flooded quarry. It's the UK's premier inland dive site for training, and is filled with numerous wrecks, including a massive passenger jet, helicopters, and buses.

Named because some divers find the currents 'chicken-scary', this long reef offers a fantastic drift dive when conditions are right. The reef top is covered in a pristine hard coral garden and is swarmed by a huge diversity of reef fish.

Chileno Bay is another beautiful and protected bay offering very easy diving conditions. The finger-like reef formations are home to a wide variety of marine life, and it's a great spot to see turtles and moray eels.

Chinchorro is a large and remote coral atoll, a protected biosphere reserve. The diving is on pristine, untouched reefs and numerous historical shipwrecks. It's also one of the few places in the world where you can snorkel with American crocodiles.

Chios is a Greek island in the Aegean Sea that offers fantastic diving away from the main tourist crowds. The island is known for its incredible visibility, underwater caves, dramatic walls, and a number of interesting shipwrecks.

Chole Bay at Mafia Island is a large, sheltered bay that is part of the marine park. It offers a huge variety of easy and beautiful dive sites, from pristine coral gardens to seagrass beds that are a hotspot for macro life like seahorses.

The Chrisoula K was a Greek freighter that sank in 1981 carrying a cargo of Italian floor tiles, which can still be seen scattered inside the wreck. The wreck sits with its stern deep and bow shallow, offering a fun dive for all levels.

The Chrisoula K was a Greek freighter that sank in 1981 carrying a cargo of Italian floor tiles, which can still be seen scattered inside the wreck. The wreck sits with its stern deep and bow shallow, offering a fun dive for all levels.