Caletas is a marine site located near Chimo, Mexico, featuring a combination of natural reef and artificial reef structures. Accessible only by boat, the site offers depths ranging from 7 to 30 metres, with an average depth of 16 metres. Conditions are generally mild, with visibility typically between 10 and 18 metres. The site is suitable for beginners and supports night diving. Divers should be aware of potential hazards including jellyfish and sharp coral. Guided tours and equipment rental are available through local dive shops. Typical dives at this location last approximately 45 minutes.

Chimo is a marine dive site featuring reefs, pinnacles, and a drop-off. The topography includes rock formations known as Las Iglesias, which rise from the seabed like pillars. Divers can explore depths ranging from 9 to 30 metres, with an average depth of 25 metres. Due to the strong currents and depth, this site is suitable for intermediate divers. Access is by boat only, as the site is located over 40 kilometres from the shore. Visibility varies significantly, ranging from 4 to 30 metres depending on conditions. Water temperatures fluctuate between 21C and 30C throughout the year.

Pizota is a reef site located near the village of Chimo, accessible only by boat. The area features a coastline with mild currents, though visitors should be aware of potential jellyfish and strong current hazards. Water temperatures fluctuate between 24C and 30C throughout the year. Species recorded around this area include wrasses, Sally Lightfoot crabs, jewel morays, king angelfish, threebanded butterflyfish, moorish idols, porcupinefish, groupers, guineafowl puffers, razor surgeonfish, pufferfish, sea stars, and various crabs. A cafe is available for visitors. This site is suitable for beginners and offers a peaceful environment for snorkelling.

Playa Isabel is a reef site located south of the main Yelapa bay near Chimo. The site features a rocky perimeter that provides a more intimate environment with reduced boat traffic compared to the main beach. Snorkellers can explore depths ranging from 2 to 10 metres, with an average depth of 6 metres. Conditions vary, with visibility typically between 9 and 30 metres and mild currents. Access is available from both shore and boat. The site is suitable for beginners, though visitors should be aware of potential hazards including jellyfish and surf. Parking facilities are available nearby.

Majahuitas is a boat-access reef located off the Pacific Coast of Mexico. The site features a reef structure that spans depths from 8 to 40 metres, with an average depth of 20 metres. Conditions at the site vary, with visibility ranging from 5 to 37 metres and water temperatures between 21 and 29 degrees Celsius. A mild current typically persists, making the site suitable for beginner divers. Access is strictly by boat, and the site is located approximately 19 kilometres from the shore. A cafe is available on-site for visitors, though divers should plan their trip duration accordingly as the boat journey limits access to other facilities.

El Morro is a series of stone mounds located in the Marietas Islands, offering a challenging environment for advanced divers. The site features a complex topography of rocky walls, caves, and tunnels, with depths ranging from 18 to 40 metres. Due to strong currents and the presence of overhead environments, this site is suited for experienced divers. Visibility typically ranges from 15 to 36 metres. Access is by boat only, with dives averaging 50 minutes. Species recorded around this area include spotted eagle rays, king angelfish, panamic green morays, Cortez angelfish, razor surgeonfish, wrasses, groupers, guineafowl puffers, triggerfish, rock cod, pufferfish, flower urchins, barberfish, and porcupinefish.

Las Caletas in Los Arcos National Park offers a diverse underwater environment featuring natural reefs, artificial reef structures, and caves. The site is accessible only by boat and is suitable for beginners, though the depth range of 20 to 30 metres requires careful attention to recreational limits. Visibility typically ranges from 10 to 20 metres with mild currents. Species recorded around this area include wrasses, groupers, various moray eels, and angelfish. Due to the depth, divers should manage nitrogen narcosis risks and remain vigilant regarding active boat traffic. Guided tours are available to assist with navigation and safety protocols during the typical 40-minute dive.

Anegados is a reef and cave site located in the Marietas Islands, Mexico. The topography ranges from 9 to 25 metres in depth, with an average of 17 metres. Divers must access the site by boat due to hazardous surf conditions at the shore. The site features cave formations that require technical awareness, and conditions include moderate to strong currents. Visibility varies significantly from 7 to 30 metres. Water temperatures fluctuate between 21 and 30 degrees Celsius throughout the year. Due to the depth, current, and overhead environments, this site is suitable for advanced divers only. Guided tours are strongly recommended to navigate local current patterns effectively.