Banc Rosario is a reef site located off the coast of Sakata, Madagascar. Divers typically explore depths ranging from 14 to 30 metres, with an average depth of 18 metres. Access is strictly by boat. The site features mild currents and visibility that fluctuates between 10 and 30 metres. Water temperatures remain consistent between 26 and 29 degrees Celsius throughout the year. Night diving is permitted, offering a different perspective of the reef structure. Divers should be aware of potential hazards including jellyfish, sea urchins, stonefish, and sharks. Due to the depth and environmental factors, this site is best suited for intermediate divers.

Banc des gorgones is a reef site located 1000 metres off Nosy Tanikely. The reef topography extends from 13 to 24 metres, with an average depth of 18 metres. Divers experience mild currents, though conditions can vary, and visibility typically ranges between 5 and 15 metres. Access is strictly by boat, and the site is suitable for beginners. Hazards include stonefish on the reef structure and potential boat traffic during ascents. Guided tours are recommended for navigation and spotting hazards. Water temperatures remain consistent between 27 and 29 degrees Celsius throughout the year.

Rosado is a reef site located at Banco Rosario in the Radama Archipelago. The topography consists of a slope that descends from 13 metres to a maximum depth of 40 metres, with an average depth of 25 metres. Divers should be prepared for moderate currents and visibility ranging between 15 and 30 metres. Due to the depth and current, this site is suited for intermediate divers. Boat access is required, and guided tours are available to assist with navigation. Hazards at this site include sharks, significant depth, and sharp coral. Divers should maintain strict buoyancy control and monitor depth gauges closely throughout the 45-minute dive.

Plouf is a shore-entry reef site located in Sakata, Madagascar. The site is suitable for beginners, with an average depth of 8 metres and a maximum depth of approximately 8.5 metres. Divers encounter mild currents and visibility ranging from 5 to 30 metres. Marine life recorded at the site includes common wrasses, alongside rarer sightings of peacock mantis shrimp, Indian lionfish, and various nudibranchs such as the Chromodoris and Geometric Rainbow Dorid. Other species present include flatworms, pufferfish, and banded coral shrimp. Night diving is permitted at this location. Divers should be aware of the presence of jellyfish and stonefish in the area.

Manta Point is a reef located at Banco Rosario in the Radama Archipelago, Madagascar. The site features a reef structure extending to depths between 18 and 25 metres. Divers access the site via boat, where they encounter mild currents and visibility ranging from 10 to 30 metres. Water temperatures remain consistent throughout the year, fluctuating between 27 and 29 degrees Celsius. The reef is composed of hard coral, providing a habitat for various marine life including green sea turtles, laced morays, leaf scorpionfish, and small groups of wrasses. Due to the manageable current, this site is suitable for newly certified divers.

Manta divesite is a reef located at Banco Rosario in the Radama Archipelago. The site features a reef structure ranging from 13 to 28 metres deep, with an average depth of 21 metres. Access is by boat, as the site is 16 kilometres from shore. Divers encounter mild currents and visibility typically between 15 and 30 metres, though it can shift quickly. Water temperatures remain between 26 and 29 degrees Celsius. Species recorded around this area include green sea turtles, laced morays, leaf scorpionfish, wrasses, rock cod, longfin bannerfish, blackspotted pufferfish, flatworms, and various invertebrates such as soft corals, sea stars, and crabs. Sea urchins are present in shallow areas.

Chameau is a varied site in Sakata, Madagascar, featuring a combination of natural reef, pinnacle, and artificial structures. Suitable for intermediate divers, the site ranges from 13 to 33 metres in depth, with an average of 22 metres. Visibility typically spans 15 to 30 metres, accompanied by mild currents. Divers should be aware of surge and swell, which can push towards the structure. Water temperatures remain consistent between 26 and 28 degrees Celsius. Species recorded around this area include emperor angelfish, green sea turtles, leaf scorpionfish, laced morays, wrasses, and various invertebrates such as flatworms and banded coral shrimp.

Charlies Point is a shallow reef site located off Sakata, Madagascar. The site is characterised by calm conditions and mild currents, making it suitable for beginner divers. Visibility is consistently recorded at 30 metres, allowing for clear observation of the reef topography. Divers access the site by boat. Water temperatures range from 27 to 30 degrees Celsius throughout the year. As there are no facilities on site, divers should confirm equipment provision and departure schedules with a local dive centre prior to arrival.