Gorgona Island and neighboring Gorgonilla anchor a marine and rainforest protected area off Colombia's Cauca coast. Its attraction is the pairing of rocky coral habitats, sharks and turtles with regenerated forest, the ruins of a former prison and seasonal humpback migrations. Diving requires authorized vessels; non-divers can consider a park-approved day visit from Guapi. Crucially, the park currently offers day visits only on land, not overnight tourism accommodation or restaurant service. A distinct multi-night scuba option sleeps aboard authorized expedition vessels, with fresh permission and operator confirmation required. July to September overlaps humpback season and a relatively less rainy interval; January to March is another relative dry period and historically reported scuba-visibility alternative. Do not expect guaranteed whales, fixed ferry sailings, beach snorkeling, solo freediving or onsite emergency facilities. Park details; no-lodging notice.