Puerto Naito is a sheltered bay located on the Barú Peninsula along the Cartagena Coast. This site features a mix of reef, seagrass, and artificial reef habitats, making it suitable for beginners. Snorkellers can explore depths ranging from 3 to 12 metres, with an average depth of 3 metres. The area offers mild currents and visibility typically between 10 and 20 metres. Water temperatures remain consistent, ranging from 28C to 30C throughout the year. Access is available via both shore and boat entries. Divers and snorkellers should be aware of the presence of jellyfish in the water. Facilities including air fills and equipment rental are available nearby.

Playa Libre is the primary public beach on Isla Grande, providing straightforward shore access to a fringing reef. The site features depths ranging from 2 to 12 metres, with an average depth of 7 metres. While nearshore coral exhibits some damage, swimming 50 to 100 metres offshore reveals healthier reef patches. Conditions are generally mild, with visibility typically between 5 and 15 metres and water temperatures consistently warm, ranging from 28 to 30C throughout the year. This site is suitable for beginners and offers both diving and snorkelling opportunities. Divers should remain aware of boat traffic in the area and take care to avoid sharp coral.

La Avioneta is a small aircraft wreck resting in shallow water off the Cartagena Coast. Located approximately 500 metres from shore, the site sits at an average depth of 5 metres, with a range between 2 and 8 metres. The wreck serves as an artificial reef and is situated near the ruins of a former vacation mansion. Access is by boat only. Conditions are generally mild with visibility ranging from 10 to 30 metres and water temperatures between 28 and 30C. The site is suitable for beginners and offers a 4/5 rating for snorkelling. Divers should be aware of potential hazards including entanglement, jellyfish, and lionfish.

Caribaru is a reef and wall site located 500 metres off the Cartagena Coast. Divers and snorkellers access this site by boat, which is required for entry. The site features depths ranging from 13 to 31 metres, with an average depth of 13 metres. Conditions are generally suitable for intermediate skill levels, with mild currents and visibility between 10 and 30 metres. Water temperatures remain consistent, typically between 28 and 30 degrees Celsius. Night diving is available at this location. Hazards include the presence of jellyfish. Species recorded around this area include various parrotfish, wrasses, blue tang, and butterfly fish.

Bajo de las Mantas is a shallow submerged reef plateau located off the Cartagena coast. The site features sandy patches interspersed between coral heads, reaching depths of 5 to 15 metres with an average of 10 metres. Visibility typically ranges from 15 to 30 metres, and currents are generally mild. Access is by boat only, with a typical visit lasting 45 minutes. The site is suitable for beginners and offers a high-quality snorkelling experience. Species recorded around this area include blue tang, striped parrotfish, wrasses, stoplight parrotfish, round stingray, Spanish hogfish, foureye butterfly fish, and great barracuda. Hazards include sharp coral and the presence of lionfish.

La Piscina is a natural lagoon situated on the northwest tip of Isla Grande along the Cartagena Coast. Protected by a massive coral barrier, this site offers calm conditions suitable for beginners. Snorkellers can explore the shallow reef, which ranges from 1 to 8 metres in depth with an average of 4 metres. Visibility typically fluctuates between 10 and 25 metres. Access to the site is by boat only, and visitors should remain aware of boat traffic in the area. Water temperatures remain warm throughout the year, ranging from 28 to 30 degrees Celsius. Facilities including equipment rental, showers, and a rinse station are available.

Isla Gloria is a wall and reef site located off the Cartagena Coast. Divers access the site by boat, which is required due to its distance of 5000 metres from the shore. The topography features a wall and reef structure with depths ranging from 2 to 30 metres, averaging 15 metres. Conditions are generally mild with visibility between 10 and 30 metres and water temperatures consistently between 28 and 30C. The site is suitable for beginners. Hazards include deep water, jellyfish, and lionfish. Species recorded around this area include parrotfish, wrasses, blue tang, Spanish hogfish, foureye butterfly fish, round stingray, groupers, Caribbean spiny lobster, honeycomb cowfish, Christmas tree worm, lettuce sea slug, gray angelfish, and great barracuda.

Alex Place is a reef and wall site located off the Cartagena Coast, Colombia. The topography features a reef structure that transitions into a wall, reaching depths between 12 and 25 metres with an average of 15 metres. Access is by boat only, and the site is suitable for beginner divers, though a moderate current requires attention. Visibility ranges from 5 to 20 metres, and water temperatures remain between 28 and 30C. Divers should be cautious of sharp coral and the presence of lionfish. Maintain buoyancy to avoid contact with the reef and watch for active boat traffic during ascents. Submerged nets may be present near the structure.