Trails
Coral reef snorkeling — Tropical fish, sea fans, and brain coral in warm shallow waters. Natural lagoons — Enclosed pools of calm turquoise water perfect for swimming. Mangrove channels — Kayak through tunnels of red mangrove sheltering juvenile reef fish. Fresh seafood lunch — Grilled fish and coconut rice served on the sand
Wildlife
The archipelago's coral reefs shelter over 50 hard and soft coral species, including elkhorn, staghorn, and massive brain coral formations. Snorkelers regularly spot sergeant majors, parrotfish, blue tangs, and barracuda in the shallows, while hawksbill and green sea turtles feed on seagrass beds between the islands. Red mangrove channels serve as nurseries for juvenile snapper and lobster, and brown pelicans and magnificent frigatebirds circle overhead, diving for fish along the reef edges.
When to Visit
Boat departures: Typically 8–9 AM from Cartagena's Muelle de los Pegasos. Return: 3–4 PM (full day trip). Best months: December–April for calmest seas and clearest water. Avoid: October–November when rough seas can make crossings uncomfortable
Admission and Costs
Day trip (group boat): COP 150,000–200,000 ($37–50) including lunch. Day trip (private boat): COP 800,000–1,500,000 ($200–375) for up to 10 people. Snorkeling gear rental: COP 30,000–50,000 ($7.50–12). National park fee: COP 20,600 ($5) for foreigners. Oceanarium (optional): COP 45,000 ($11)
Tips for Visitors
Book through your hotel: Avoid dock touts; reputable boats are safer and better maintained. Reef-safe sunscreen: The coral is fragile — use biodegradable sunscreen to protect the ecosystem. Cash only: Most islands have no ATMs — bring enough COP for the day. Seasickness: The 45-minute crossing can be rough — take medication beforehand if sensitive. Private vs. group: Group tours are cheap but crowded; a private boat offers flexibility to visit quieter islands
Frequently Asked Questions
When do boats depart and what is the best season to visit the Rosario Islands?
Boat departures: Typically 8–9 AM from Cartagena's Muelle de los Pegasos. Return: 3–4 PM (full day trip). Best months: December–April for calmest seas and clearest water. Avoid: October–November when rough seas can make crossings uncomfortable
How much does it cost to access Rosario Islands?
Day trip (group boat): COP 150,000–200,000 ($37–50) including lunch. Day trip (private boat): COP 800,000–1,500,000 ($200–375) for up to 10 people. Snorkeling gear rental: COP 30,000–50,000 ($7.50–12).
What practical tips should visitors know before booking a trip to Rosario Islands?
Book through your hotel: Avoid dock touts; reputable boats are safer and better maintained. Reef-safe sunscreen: The coral is fragile — use biodegradable sunscreen to protect the ecosystem.