Calderón is a coastal rocky reef located in Santa Marta, Colombia, offering depths reaching 10 metres. The site features an infralittoral rocky reef adjacent to a sandy area, making it a suitable location for buoyancy practice and entry-level diver training. Divers can access the site via boat or shore. Conditions are generally favourable, with mild currents and visibility ranging between 15 and 30 metres. Water temperatures remain warm throughout the year, fluctuating between 26C and 30C. Facilities available at the site include showers and changing rooms. Due to the presence of boat traffic, divers should exercise caution during their ascent and while at the surface.

Morro de Gaira is an islet located 850 metres off the coast of Santa Marta. This site features a fringing reef dominated by massive coral heads and branching corals. Divers can explore the entire perimeter of the island, with depths ranging from 8 to 18 metres. Access is by boat only. Conditions vary, with visibility typically between 10 and 30 metres and moderate currents. Water temperatures fluctuate between 26C and 30C throughout the year. The site is suitable for beginners and supports night diving, with a typical dive duration of 35 minutes.

El Nataly is a wreck dive featuring a sunken yacht resting on a muddy bottom near Santa Marta. Located 8000 metres from shore, this site requires boat access and is suited for intermediate divers due to depths reaching 30 metres. The environment is characterised by low visibility ranging from 5 to 15 metres and mild currents. Divers may encounter species such as the Indian Lionfish, Chain Moray, Caribbean Sharpnose Puffer, and Honeycomb Cowfish. Other observed life includes Hilton's Aeolid, Giant Feather-duster Worms, Fireworms, Zoanthids, Sea Hares, Sea Squirts, and various snails. Hazards include decompression risks, entanglement, sharp coral, and nitrogen narcosis.

El Morro de Santa Marta is a boat-accessible site featuring a combination of reef, wall, and drift diving. Located off the Caribbean coast of Colombia, the site reaches depths between 18 and 39 metres, with an average of 25 metres. Divers encounter moderate currents, requiring intermediate skill levels to manage the drift and wall sections. Visibility fluctuates significantly, ranging from 7 to 30 metres. Night diving is available, providing an alternative view of the reef and wall structures. Hazards include sharp coral and rocks, as well as sea urchins, necessitating caution during entry and while navigating the reef edge.

El Morro Tec in Santa Marta, Colombia, is a complex site featuring a diverse topography of reefs, walls, caves, and pinnacles. Ranging from 9 to 40 metres with an average depth of 25 metres, this site is reserved for advanced divers due to strong currents and overhead environments. Visibility fluctuates between 7 and 30 metres. Access is strictly by boat, and divers must navigate potential surf and shore break conditions during entry. Divers should exercise caution around sharp coral and rock structures. Facilities including air fills and equipment rental are available to support dives, which typically last around 60 minutes.

Barcazas is a wreck and reef site located near the port of Santa Marta, Colombia. The site consists of a small ship broken into sections that serve as an artificial reef. Divers typically begin at the shallowest section at 2 metres, continuing to a second part at 6 metres, and finishing at the deepest section between 14 and 16 metres. The maximum depth is 22 metres, with an average of 15 metres. Access is by boat, and the site features mild currents and visibility ranging from 10 to 30 metres. Species recorded around this area include spotted moray, green moray, French angelfish, and Caribbean spiny lobster. Stonefish are a potential hazard.

Punta Betin in Santa Marta is a versatile dive site featuring a combination of reef, wall, and wreck topography. Divers can explore the remains of barges once used to transport coal to the local port, alongside areas of soft coral. Located 500 metres from the shore, the site is accessible by boat and is suitable for beginners. Depths range from 8 to 18 metres with an average of 12 metres. Conditions are generally mild with visibility between 10 and 30 metres and water temperatures ranging from 26 to 30C. Night diving is permitted at this location, though divers should remain aware of boat traffic in the area.

Playa Vaca is a shore-entry reef dive site located in Santa Marta, Colombia. The site is situated along the Caribbean Coast and offers a marine environment suitable for diving. Water temperatures at this location fluctuate throughout the year, ranging from 26C in the cooler months of January through March to 30C in October. As a shore-accessible reef, it provides a straightforward entry point for divers exploring the local coastal topography. Conditions at the site are variable, and divers should plan their activities according to local maritime reports.