On Isla Marina, a small private island inside the Rosario Islands National Park about an hour by boat from Cartagena, Hotel Coralina Island keeps its footprint deliberately small, capping capacity at around 19 guests so the island never feels crowded.

Rooms range from Classic Garden View and Classic Twin Garden View to the Master Suite Ocean View (which sleeps up to four) and the Deluxe Suite Ocean Water, each with a private deck, air conditioning, free Wi-Fi, a safe, and L’Occitane bath amenities. Fresh-water showers and 24/7 reception round out the boutique-hotel feel.

Days revolve around the reef just offshore: snorkeling, kayaking, and paddleboarding are all easily arranged, and Coralina also runs bioluminescent-plankton excursions after dark. On-site dining follows a farm-to-table approach, and the hotel hosts small weddings and corporate retreats alongside its regular guests, plus sustainability initiatives such as mangrove restoration and youth hospitality training.

Reaching Coralina Island means a private-island boat transfer from Cartagena, which the hotel coordinates directly — check current schedules and rates through the official website before booking. Because Isla Marina sits inside the Corales del Rosario National Natural Park, the park’s entrance fee applies on top of the room rate.

With its small guest count and spa-driven pace, Coralina Island is best suited to couples, honeymooners, and small groups looking for a quiet, design-forward alternative to the archipelago’s bigger resorts. Message the team on Instagram to check availability.