Isla Gorgona is a forested Pacific island national park about 28 km off Colombia's Cauca coast — a former maximum-security prison turned strictly protected reserve, reached only via authorized operators from Guapi. Its warm but plankton-rich waters host whitetip reef sharks, sea turtles, rays and schooling fish, and migrating humpback whales whose songs are often heard underwater from July to November.
Destination info
Conditions, highlights, and the resident marine life.
Conditions
Water and air temperature across the year.
WaterAirDryShoulderWet
Description
Gorgona is a jungle-clad island roughly 28 km (about 28 nautical miles, ~1.5 hours by fast boat from Guapi) off Colombia's Pacific coast in Cauca Department. It served as a notorious maximum-security prison from 1959 until 1984, after which it became Parque Nacional Natural Gorgona, today protecting 60,503 hectares (58,663 of them marine). Access is tightly controlled: visitors must travel with authorized operators, hold a prior reservation, attend an entry induction, and the island caps overnight visitor numbers (roughly 80–100), so it never feels crowded. Underwater the park holds Colombia's richest Pacific coral communities (Pocillopora and Pavona dominate) plus reef fish, moray eels, rays, sea turtles and several shark species including resident whitetip reef sharks and seasonal hammerheads. Diving spans some 12–15 authorized sites split between the sheltered, beginner-friendly northeast and the wall-and-current sites of the exposed western flank. Water is warm (about 20–28°C across the year) but visibility is variable and often green and plankton-laden (commonly 10–20 m, occasionally to 30 m), the cost of a productive food web. The marquee draw is the southern-migrating humpback whales of July through November — usually heard singing during dives and watched from the boat rather than encountered underwater.
Highlights
What makes this dive worth the trip.
Humpback whales (Megaptera novaeangliae) migrate into Gorgona's waters to breed and calve from roughly July to November; divers frequently hear their songs underwater and watch them from the boat, though encounters are surface/acoustic and never guaranteed — operators are explicit that no sighting is promised.
Gorgona is a strictly protected national park covering 60,503 hectares (58,663 marine); access is only via authorized operators with a prior reservation and an entry induction, and the island limits overnight visitor numbers, so it stays far quieter than Colombia's mainland dive sites.
The park has roughly 12–15 authorized dive sites that open depending on weather and sea state — the sheltered northeastern sector (El Planchón, El Remanso, La Tiburonera, Plaza de Toros) is calmer and beginner-friendlier, while the western flank (Los Farallones, La Montañita I and II, El Viudo) offers walls and stronger open-water conditions.
Marine life
20 species you’re likely to encounter on a dive here.
Dive sites
7 signature sites at this destination.
La Tiburonera
The park's signature big-animal site on the northeastern side, a drift dive over a sloping bottom famous for shark and large-pelagic encounters — whitetip reef sharks and, seasonally, scalloped hammerheads, plus schooling jacks and big fish moving through the blue. The reef and rubble bottom averages around 20 m and drops toward 40 m, so dives are planned around depth and the moderate drift current. The most sought-after site for divers coming to Gorgona for sharks.
10–40 mintermediateDay boatModerateVisibility 10–30 m
El Planchón
A small sunken vessel near the island settlement, roughly 30 m long and now thoroughly colonized by coral, serving as an artificial reef and shelter for reef fish, sea turtles and small sharks. Lying in about 10–25 m with calm conditions, it is the park's introductory wreck — used for beginner dives, the on-island mini-course, and snorkeling. A gentle, structure-rich dive rather than a big-animal site.
10–25 mbeginnerDay boatLightVisibility 10–20 m
El Remanso
A calm-water site on the more sheltered side of the island, averaging around 20 m and reaching about 30 m, with diverse reef life over rock and coral. Its gentle conditions make it accessible to a wide range of divers and a reliable option when the exposed western sites are blown out; reef fish, rays, turtles and the occasional cruising shark are typical.
10–30 mbeginnerDay boatLightVisibility 10–25 m
Los Farallones
A western-sector site on the more exposed flank of the island, offering rocky walls and open-water diving with stronger conditions than the sheltered northeast. One of the authorized sites that only opens in favourable weather and sea state; rewards divers with bigger structure, schooling fish and the chance of larger pelagics passing in the blue. Best suited to confident divers comfortable with current and surge.
12–35 madvancedDay boatModerateVisibility 10–30 m
La Montañita I & II
A pair of authorized sites on the western sector built around rocky 'little mountain' formations rising from the bottom, dived in 12–35 m. The relief concentrates schooling reef fish, snappers and jacks, with rays and reef sharks patrolling the structure. More exposed than the northeastern sites, with currents that demand attention; opens according to sea conditions.
12–35 mintermediateDay boatModerateVisibility 10–30 m
La Parguera
A reef site noted for abundant large fish, dived in roughly 15–30 m over coral and rock. Schools of snapper and jacks gather here, with groupers, rays and reef sharks frequently seen. Conditions are moderate, making it a solid all-rounder between the gentle northeastern sites and the demanding western walls.
15–30 mintermediateDay boatModerateVisibility 10–25 m
Plaza de Toros
A northeastern-sector site whose rock formations create an amphitheatre-like setting (its name means 'bullring'), dived in moderate depths over reef and boulders. Reef fish, moray eels, turtles and whitetip reef sharks are typical, with rays passing through. Generally calmer than the western flank, it is one of the more accessible authorized sites.
10–30 mintermediateDay boatLightVisibility 10–25 m
Where to dive & stay
Local dive centers, resorts, and hotels.
Featured operators coming soon
Verified dive centers, resorts, and hotels around Gorgona will list here — pricing, photos, and direct contact.
