Cartagena / Rosario Islands
Colombia · Caribbean
Colombia's Caribbean gem where a 28-island coral archipelago meets colonial history, with vibrant reef fish, resident nurse sharks, and accessible wreck diving minutes from one of South America's most beautiful cities.
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
32 species across the dive sites here
Mustard Hill Coral
Seen 3 months ago
at Playa Blanca Reef
Least concern
Nurse Shark
Seen 3 months ago
at Coral Gardens
Vulnerable
Blue Tang
Seen 3 months ago
at Coral Gardens
Least concern
Long-spined Sea Urchin
Seen 3 months ago
at Playa Blanca Reef
Sergeant Major
Seen 3 months ago
at Playa Blanca Reef
Least concern
Green Moray Eel
Seen 6 months ago
at El Tesoro Wreck
Least concern
Queen Angelfish
Seen 8 months ago
at Coral Gardens
Least concern
Atlantic Spiny Lobster
Seen 9 months ago
at Coral Gardens
Caribbean Spiny Lobster
Seen 9 months ago
at Playa Blanca Reef
Stoplight Parrotfish
Seen May 2025
at Coral Gardens
Least concern
Tube Sponge
Seen May 2025
at El Tesoro Wreck
Green Sea Turtle
Seen Mar 2025
at El Tesoro Wreck
Least concern
Great Barracuda
Seen Mar 2025
at El Tesoro Wreck
Least concern
Banded Butterflyfish
Seen Jan 2025
at Playa Blanca Reef
Least concern
French Angelfish
Seen Jan 2025
at Coral Gardens
Least concern
Brain Coral
Seen Oct 2024
at Playa Blanca Reef
Black Coral
Seen year round
at El Tesoro Wreck
Common Sea Fan
Seen year round
at El Tesoro Wreck
Elkhorn Coral
Seen year round
at Coral Gardens
Critically endangered
Encrusting Sponge (mixed species)
Seen year round
at El Tesoro Wreck
Fire Coral
Seen year round
at Playa Blanca Reef
Critically endangered
Loggerhead Sponge
Seen year round
at La Cherna Wall
Orange Elephant Ear Sponge
Seen year round
at La Cherna Wall
Sea Fan
Seen year round
at La Cherna Wall
Southern Stingray
Seen year round
at Playa Blanca Reef
Near threatened
Star Coral
Seen year round
at Coral Gardens
Endangered
Trumpetfish
Seen year round
at El Tesoro Wreck
Yellowhead Jawfish
Seen year round
at Coral Gardens
Least concern
Caribbean Reef Shark
Seasonal visitor
at La Cherna Wall
Endangered
Nassau Grouper
Seasonal visitor
at La Cherna Wall
Critically endangered
Spotted Eagle Ray
Seasonal visitor
at Coral Gardens
Endangered
Warsaw Grouper
Seasonal visitor
at La Cherna Wall
Near threatened
Dive sites
Coral Gardens
elkhorn coral · star coral · french angelfish · queen angelfish
El Tesoro Wreck
green sea turtle · great barracuda · green moray eel · black coral
La Cherna Wall
black coral · orange elephant ear sponge · sea fan · loggerhead sponge
Playa Blanca Reef
brain coral · mustard hill coral · fire coral · sergeant major