Dive sites in Sao Tome and Principe

Ilheu das Rolas is reached by a short boat transfer from the southern tip of Sao Tome island. International flights arrive at Sao Tome city airport from Lisbon, Accra, and other African capitals. From Sao Tome city, it is approximately a 90-minute drive south to the embarkation point at Angolares or Porto Alegre, followed by a 15-minute boat crossing. A resort operates on the island with basic dive facilities.

Ilheu das Rolas benefits from its position in the nutrient-rich waters of the Gulf of Guinea, where deep oceanic upwellings bring nutrients to the surface. The volcanic substrate provides complex hard-bottom habitat that is rare along the predominantly sandy West African coast. The island's remote location and minimal fishing pressure have allowed marine populations to remain in relatively healthy condition. The surrounding waters are also part of the habitat range for the critically endangered Atlantic humpback dolphin.

Diving infrastructure on Sao Tome and Principe is limited but growing. A small number of dive operations serve visitors, primarily based in Sao Tome city and on Ilheu das Rolas itself. Equipment rental is available but selection may be limited, so bringing essential personal gear is recommended. There is no hyperbaric chamber on the islands, making conservative dive profiles essential. The country is actively developing eco-tourism, and diving services are gradually improving.