Assumption Island in the Seychelles offers accessible snorkeling along its northwest coast. The site features a mix of reef and seagrass habitats located approximately 200 metres from the shore. Snorkellers can explore depths ranging from 2 to 6 metres, with an average depth of 4 metres. The area is generally sheltered from currents, though mild currents can occur. Visibility at this site typically ranges between 10 and 30 metres. Entry is from the shore, making it suitable for beginners. Water temperatures fluctuate between 25C and 29C throughout the year. Divers and snorkellers should be aware of sharp coral in the area.

Passe Dubois is a reef site located within the Aldabra atoll in the Seychelles. This drift dive site is accessed by boat and is situated 700 metres from the shore. Divers and snorkellers can expect a shallow experience with depths ranging from 3 to 10 metres, averaging 8 metres. The site features mild currents and visibility that fluctuates between 10 and 50 metres. Due to the nature of the pass, potential hazards include entanglement, sharks, and strong currents. The site is suitable for beginners and offers a typical dive duration of 45 minutes. Water temperatures remain warm throughout the year, ranging from 25 to 30 degrees Celsius.

Aldabra Main Channel is a drift dive through a remote atoll passage, where strong tidal currents carry divers along the reef. The site features depths between 15 and 25 metres, with an average of 18 metres. Visibility ranges from 10 to 30 metres. Divers must use boat access and guided tours to navigate the exposed conditions. The current is the defining feature, requiring careful timing with tidal flows. A wreck located at the site presents an entanglement risk, so divers should maintain buoyancy and avoid penetration. The reef environment supports a variety of marine life typical of the region, including reef fish and invertebrates.