Punta Arenas, located off Isla Cerralvo, provides a varied underwater landscape featuring a reef, a pinnacle, and a drop-off. This site is suitable for beginners, with depths ranging from 6 to 10 metres and visibility reaching 30 metres. Divers encounter common species including King Angelfish, wrasses, Guineafowl Puffer, and Bluebottle. Less frequently, divers may spot Panamic Green Moray, Razor Surgeonfish, White-spotted Puffer, Moorish Idol, Barberfish, groupers, Threebanded Butterflyfish, triggerfish, and porcupinefish. The site experiences mild currents, though divers should remain alert for surge and swell conditions. Boat access is required to reach this location, which sits 55 kilometres from the shore.

Barco Encayado is a shallow wreck located off Isla Cerralvo, serving as an artificial reef. The site sits at an average depth of 9 metres, with a range of 8 to 10 metres, making it suitable for beginner divers. Access is by boat only. Divers can expect mild currents and visibility ranging from 10 to 30 metres, which allows for viewing the full profile of the structure. Water temperatures fluctuate between 21 and 30 degrees Celsius throughout the year. As services at Isla Cerralvo can vary, it is recommended to check locally for boat operator availability before planning a trip.

Punta Arenas on the island side of Isla Cerralvo features a shallow fringing reef located 50 metres from the shore. This site is suitable for beginners and offers both boat and shore access. Divers and snorkellers can expect depths ranging from 10 to 18 metres, with an average depth of 10 metres. Conditions are generally calm with mild currents and visibility fluctuating between 5 and 30 metres. Species recorded around this area include California sea lions, king angelfish, Panamic green morays, wrasses, guineafowl puffers, razor surgeonfish, barberfish, porcupinefish, moorish idols, triggerfish, groupers, redlip parrotfish, pufferfish, and bluespotted cornetfish.

Roca Montana is a reef site located at Isla Cerralvo, Mexico, offering depths ranging from the surface down to 14 metres. This site is accessible only by boat and is suitable for beginners, though divers should be prepared for moderate currents. Water temperatures fluctuate between 21C and 29C throughout the year. Divers can observe hard coral formations and a variety of reef fish, including barber fish and manta rays. Due to the presence of moderate currents, it is recommended to stay close to the reef structure and coordinate entry and exit procedures with the boat crew to ensure a safe experience.

Punta Sur is a dynamic dive site located at the southern tip of Isla Cerralvo, marked by a beacon where the Cerralvo Channel meets the open sea. This site features a diverse topography including a reef, wall, pinnacle, and cave system. Divers should expect strong currents, as this area acts as a corridor for migratory marine life. Access is by boat only, and the site is suited for advanced divers due to the challenging conditions. Depths range from 6 to 12 metres, with visibility typically between 10 and 30 metres. Water temperatures fluctuate throughout the year, ranging from 21C in February to 30C in September.

Pargo Via is a boat-accessible site off Isla Cerralvo, Mexico, featuring a diverse underwater landscape of reefs, walls, canyons, and pinnacles. Divers typically explore depths between 15 and 20 metres, with visibility ranging from 5 to 10 metres. The site is defined by strong currents that can shift in direction and intensity, requiring intermediate skill levels and solid buoyancy control. Species recorded around this area include California sea lions, king angelfish, Panamic green morays, wrasses, and various groupers. Due to the challenging water movement, divers should maintain close proximity to their guide and boat at all times. Reef hooks are recommended for holding position against the current.

Los Viejitos is a reef and pinnacle site situated off Isla Cerralvo, designed for intermediate divers capable of managing strong currents. The topography consists of reef and rock formations reaching depths between 9 and 18 metres, with an average depth of 12 metres. Visibility typically ranges from 5 to 10 metres. Divers should be prepared for thermoclines during descent and must exercise caution around sharp coral and rock surfaces. Due to the strong currents, boat access is required, and tide timing is critical for a successful dive. Hazards include the presence of jellyfish and sharks, requiring constant situational awareness throughout the 45-minute dive duration.

Punta El Mostrador is a rocky point located on the eastern side of Isla Cerralvo, facing the open Gulf. This site features dramatic drop-offs and a rugged topography suitable for advanced divers. Depths range from 8 to 30 metres, with visibility typically between 10 and 30 metres. Access is by boat only, and divers should be prepared for moderate currents. Hazards include jellyfish, sharks, and strong currents. Species recorded around this area include California sea lions, king angelfish, guineafowl puffer, wrasses, moorish idol, triggerfish, razor surgeonfish, pixy hawkfish, bluespotted cornetfish, goatfish, and convict surgeonfish. The site is also suitable for snorkelling with a rating of 3 out of 5.