Rosario Islands
Colombia · Caribbean
An archipelago of 27 coral islands 35 km southwest of Cartagena, the Islas del Rosario sits within a national park where coral walls descend past giant barrel sponges, black coral forests, and encrusted wrecks. Seahorses cling to sea fans in shallow gardens while spotted morays and lobsters inhabit deeper ledges, making this the most accessible Caribbean wall diving in Colombia.
How this reef is doing
ⓘ How we measure thisReef state
Live science signals for this reef are still being gathered.
Coral cover
Fish life
Heat
Fishing
Open to fishing, and the water is fairly quiet.
Sources · Global Fishing Watch and reef gravity
What you will see
17 species across the dive sites here
Magnificent Frigatebird
Seen 24 days ago
at Arrecife del Medio
Least concern
Sally Lightfoot Crab
Seen 2 months ago
at Arrecife del Medio
Yellow-Headed Caracara
Seen 3 months ago
at Tesoro Island Reef
Banded Coral Shrimp
Seen 3 months ago
at Tesoro Island Reef
Great-Tailed Grackle
Seen 3 months ago
at Arrecife del Medio
Least concern
Lionfish
Seen 7 months ago
at El Planchón Wreck
Least concern
Caribbean Spiny Lobster
Seen 9 months ago
at Tesoro Island Reef
Giant Barrel Sponge
Seen Jun 2025
at Bajo Minalta
Stoplight Parrotfish
Seen May 2025
at Arrecife del Medio
Least concern
Rock Beauty Angelfish
Seen May 2025
at Tesoro Island Reef
Least concern
Horse-eye Jack
Seen Dec 2024
at Bajo Minalta
Least concern
Spotted Moray Eel
Seen Feb 2024
at Arrecife del Medio
Least concern
Black Coral
Seen year round
at Arrecife del Medio
Caribbean Reef Shark
Seen year round
at Arrecife del Medio
Endangered
Glassy Sweeper
Seen year round
at El Planchón Wreck
Least concern
Nassau Grouper
Seen year round
at El Planchón Wreck
Critically endangered
Silky Shark
Seasonal visitor
at Bajo Minalta
Vulnerable
Dive sites
Arrecife del Medio
black coral · spotted moray eel · caribbean reef shark · magnificent frigatebird
Tesoro Island Reef
caribbean spiny lobster · banded coral shrimp · rock beauty angelfish · magnificent frigatebird
El Planchón Wreck
nassau grouper · lionfish · glassy sweeper · magnificent frigatebird
Bajo Minalta
silky shark · horse-eye jack · giant barrel sponge · magnificent frigatebird