Casualina, located off Praslin in the Seychelles, offers a diverse underwater experience combining a natural reef, a wall, and an artificial reef structure. The site sits at a depth of 17 to 20 metres, making it suitable for beginner divers. Conditions are generally comfortable with mild currents and visibility ranging from 10 to 30 metres. Water temperatures remain warm throughout the year, between 26 and 30 degrees Celsius. Access is by boat only, and divers should be aware of boat traffic; using a delayed surface marker buoy is essential. Guided tours are available, and the site is accessible for night diving.

Anse La Passe is the main beach of the island, featuring a fringing reef that creates a calm lagoon. This sheltered environment is well-suited for beginners and those seeking easy shore access. At low tide, the receding water forms natural pools along the shoreline, providing opportunities to observe marine life in very shallow conditions. Water temperatures at this site range from 26C to 30C throughout the year. The site offers a straightforward snorkelling experience within a protected, shallow setting.

Anse Ramasse-Tout is a quiet reef site located on Praslin, Seychelles, accessible via a shore entry. The site features a small cove with interesting rock formations and is suitable for intermediate divers and snorkellers. Depths range from 3 to 12 metres, with an average depth of 7 metres. Conditions are generally mild, with visibility varying between 10 and 30 metres. Water temperatures fluctuate throughout the year, ranging from 26C to 30C. Equipment rental facilities are available nearby for those planning to explore the area.

Anse Mondon is a secluded reef site located on Praslin, Seychelles, offering a snorkel experience at depths between 5 and 12 metres. The site features coral patches and is accessible via both boat and a challenging two-hour hike. Conditions at the site are variable, with moderate currents and potential surf. Due to the presence of sharp coral and strong currents, this location is best suited for intermediate snorkellers. Water temperatures range from 26C to 30C throughout the year.

Black Rock is a reef site located off Praslin in the Seychelles, accessible only by boat. The site features a topography of hard and soft corals with depths ranging from 6 to 15 metres. Conditions are generally mild, though divers and snorkellers should remain aware of boat traffic in the area. Water temperatures are warm throughout the year, fluctuating between 26C and 30C. The site is suitable for various skill levels due to the manageable depths and mild currents.

Anse Lascars on Praslin is a rugged, wild site featuring a rocky shoreline and deep water. This reef site is suitable for advanced snorkellers due to strong currents and the presence of surf, as the area lacks a protective reef in some sections. Entry is via the shore. Visibility can reach up to 30 metres, though conditions vary. Species recorded around this area include Emperor Angelfish, Elongate Clam, wrasses, Reef Squid, Guineafowl Puffer, Blue Tang, crabs, and snails. Exercise caution regarding deep water, sharp coral, and strong currents when planning a visit to this exposed location.

Anse Patates is a small bay located at the southeastern tip of Praslin, Seychelles. The underwater topography features granite formations and a sloping reef wall. This site is suitable for intermediate snorkelers, with depths ranging from 1 to 6 metres. Visibility at the site varies between 10 and 30 metres. Access is via the shore, though visitors should be aware of potential hazards including sharp coral, surf, and moderate currents. Facilities available at the site include toilets and showers. Water temperatures fluctuate throughout the year, ranging from 26C to 30C.

Coco Dans Trou is a boat-access site located off the southern coast of Praslin, Seychelles. The topography features dramatic granite walls and boulders that create an interesting underwater landscape. Depths at the site range from 1 to 8 metres, with an average depth of 4 metres. Conditions vary, with visibility typically between 10 and 30 metres and moderate currents present. Due to the potential for strong currents, low visibility, and sharp coral, this site is best suited for intermediate divers. The site is suitable for both diving and snorkelling, with a snorkel rating of 4 out of 5. Night diving is also available at this location.