Santana is a reef dive located off the coast of Sao Tome and Principe, offering depths between 20 and 30 metres. The site is accessible via both shore and boat entry, with mild currents that make it suitable for beginner divers. Visibility typically ranges from 10 to 30 metres, though conditions vary. Divers should exercise caution regarding sharp coral and rock formations, as well as sea urchins present on the reef. The site features an overhead environment, requiring appropriate training for cave or swim-through navigation. Local facilities include air fills, a dive shop, guided tours, and boat charter services.

Ilhéu das Rolas is a marine site located on the equator, featuring a combination of reef and wall topography. The wall drops to an average depth of 15 metres, with a maximum depth of 20 metres. Divers experience visibility ranging from 15 to 30 metres. The site is suited for intermediate divers due to moderate currents. Entry is via the shore, though boat charters are available. Water temperatures remain between 24 and 28 degrees Celsius throughout the year. Divers should remain aware of sea urchins on the reef and wall base. The site supports a variety of reef fish and invertebrates typical of the region.