The C-59 is a deliberately scuttled vessel located off Isla Espiritu Santo, serving as an artificial reef. The wreck sits at depths between 9 and 19 metres, though divers should note that a thermocline often occurs around 18 metres where temperatures drop. Visibility typically ranges from 10 to 30 metres. Access is by boat only, and the site is suited for intermediate divers due to moderate to strong currents that can shift with little warning. Divers are advised to descend on the sheltered side of the wreck and monitor their depth and position closely throughout the dive.

The Fang Ming Wreck is an artificial reef located off the west coast of Isla Espiritu Santo. Originally a Chinese cargo ship, the vessel was sunk in 1999 and now rests at depths between 14 and 24 metres. Divers can explore the ship's structure, which attracts common species such as groupers, wrasses, and gorettes. Uncommon sightings include longnose hawkfish, jewel moray, king angelfish, cortez angelfish, barberfish, razor surgeonfish, pufferfish, scorpionfish, sea stars, and grunts. Access is by boat only. The site features mild currents and visibility ranging from 10 to 30 metres. Divers should be aware of potential hazards including entanglement and the overhead environment within the wreck.

Cardoncito Reef is situated at the southern tip of Isla Partida, near the entrance to the Caleta Partida channel. This reef site is suitable for beginners, offering depths ranging from 3 to 10 metres with an average of 6 metres. Access is by boat, with the reef located approximately 150 metres from the shore. Divers and snorkellers can expect mild currents and visibility between 10 and 25 metres. Water temperatures fluctuate throughout the year, ranging from 21°C to 29°C. Hazards at this location include boat traffic, jellyfish, and sharp coral. Guided tours and equipment rental are available for those visiting the site.

Isla Ballena, also referred to as Whale Island, is a small island located off the west coast of Espiritu Island. The site features a combination of reef topography and small cave formations. Divers can explore these structures at depths reaching up to 12 metres. The site is suitable for beginners, with mild currents typically present during dives. Access to the site is by boat only. Divers should exercise caution regarding sharp coral present throughout the area. The site provides a varied underwater environment for those interested in geological formations and reef exploration.

Ensenada de la Raza is a multi-lobed bay located on the west side of Isla Espiritu Santo. The site features a mix of sand and rocky reef topography, with rocky points separating the lobes. Depths range from 2 to 10 metres, making it suitable for beginners. Access is by boat, and the site experiences mild currents that can influence water temperatures, which fluctuate between 21C and 29C throughout the year. Divers and snorkellers should be aware of potential hazards including boat traffic, sea urchins, sharks, and sharp coral. Guided tours and boat charters are available for those visiting this area.

The Salvatierra Ferry Wreck is an artificial reef site located near Isla Espiritu Santo. The ferry sank in 1975 after striking Swanne Reef and now rests at an average depth of 18 metres, with depths ranging between 18 and 20 metres. Access to the site is by boat only. Divers should be prepared for moderate currents and potential entanglement hazards within the wreckage. Visibility at the site typically ranges from 10 to 30 metres. Water temperatures fluctuate seasonally, reaching up to 28C in late summer and dropping to 21C during the winter months. This site is suited for intermediate divers.

Swanee Reef, located near Isla Partida off Isla Espiritu Santo, is a shallow reef structure ranging from 2 to 12 metres in depth. The site is accessible by boat and offers visibility between 10 and 30 metres. Conditions include moderate currents and potential surge, requiring divers to remain aware of their surroundings and active boat traffic in the area. The site is suitable for beginners and supports night diving. Water temperatures fluctuate seasonally between 21 and 29 degrees Celsius. Divers should stay close to their guide and maintain a surface marker buoy for the ascent due to the variable current and boat activity.

El Cardonal Reef at Isla Espiritu Santo is a long, narrow inlet featuring a shallow reef and a sunken boat located near the shoreline. This protected site offers calm water conditions with mild currents, making it suitable for beginners and snorkellers. Divers and snorkellers can access the site from both the shore and by boat. Water temperatures fluctuate between 21C and 29C throughout the year. Facilities available at the location include parking and a cafe. Be aware that jellyfish may be present in the water.