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.

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.

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.

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.

Ensenada Grande at Isla Espiritu Santo features a combination of shallow beach areas and steep volcanic cliffs that descend into reef systems. This site is suitable for beginners, with depths starting at 2 metres and extending deeper along the wall. Snorkellers can access the site via both shore and boat entries. Conditions are generally mild, though visitors should remain aware of boat traffic in the area. The water temperature fluctuates throughout the year, ranging from 21C in the winter months to 29C during the summer. The site offers a varied topography of rocky walls and reef structures for exploration.

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.

C29 is a reef and wall site located off Isla Partida near Isla Espiritu Santo. The topography extends from 5 metres to a maximum depth of 25 metres, with an average depth of 15 metres. Visibility typically ranges between 15 and 30 metres. This site requires boat access and is suited for intermediate divers due to moderate currents that can strengthen during tidal changes. Divers should remain vigilant for boat traffic during surface intervals and ascents. Night diving is available, offering a different experience of the site. Always confirm current conditions with your operator before entry and carry a surface marker buoy for your ascent.

Las Cuevitas, located at Isla Espiritu Santo, is a marine site defined by a series of small caves and dark volcanic cliffs. This site is suitable for intermediate snorkellers and requires boat access. Conditions are variable, with visibility typically ranging between 20 and 30 metres and mild currents. The topography includes an overhead environment within the caves, which requires caution. Hazards include surge, sea urchins, and boat traffic. Water temperatures fluctuate throughout the year, ranging from 21C in winter months to 29C in late summer. The cliffs serve as a nesting site for Blue-footed Boobies, which can be observed diving into the water.