South Button is a reef site in the Button Islands, India, offering depths ranging from 2 to 30 metres. This boat-access site features a reef structure that drops from the shallows into deeper water. Conditions are generally mild, with visibility reaching up to 20 metres and water temperatures between 28 and 30 degrees Celsius. Divers should exercise caution regarding buoyancy to avoid contact with sharp coral and rocks, which pose a hazard to both the reef and equipment. Given the depth, divers should monitor their gauges closely. As facilities are limited, all necessary equipment and surface support must be arranged via a liveaboard or day boat prior to departure.

Jackson's Bar is a prominent rock formation rising from the seabed in the Minerva Ledge Area. This site features a reef and drop-off topography, with depths ranging from 18 to 32 metres and an average depth of 20 metres. Due to the strong currents and significant depth, this site is strictly for advanced divers. Access is exclusively by boat, with dives typically lasting 30 minutes. Visibility is variable, ranging from 15 to 40 metres. Divers should be aware of boat traffic and the challenging current conditions present at this location.

Broken Ledge is a reef site in the Minerva Ledge Area featuring low-lying rocky outcrops that rise from the seabed. The topography is characterised by a slanted structure, with one side embedded in sand and the other protruding, creating small canyons and overhangs. Divers can expect depths between 16 and 24 metres, with an average of 22 metres. This site is accessible only by boat and is situated 19 kilometres from shore. Conditions include moderate currents and visibility ranging from 20 to 30 metres. The site is suited for intermediate divers, with typical dive times of 50 minutes. The habitat supports a variety of reef fish and invertebrates.

Johnson's Reef in the Port Blair Area offers intermediate divers a varied reef topography ranging from 10 to 30 metres, with an average depth of 20 metres. Access is by boat only. The site features moderate currents that can intensify, requiring careful planning to manage the outward and return legs of the dive. Visibility typically ranges between 10 and 20 metres, with water temperatures between 28 and 30C. Divers should maintain distance from sharp coral, rocks, and sea urchins to avoid injury. Species recorded around this area include wrasses, elongate clams, Indian lionfish, harlequin sweetlips, and various groupers. Divers should remain alert for potential down currents and monitor depth to manage nitrogen narcosis risks.

Hide Out Reef in the Port Blair Area is a shallow reef site suitable for beginner divers. The site maintains a consistent depth of approximately 6 metres, making it ideal for relaxed, shallow dives. Access is exclusively by boat. Underwater conditions are generally mild, though visibility can fluctuate significantly between 5 and 40 metres. Water temperatures remain warm throughout the year, ranging from 28C to 31C. Divers should be aware of potential hazards including sea urchins and sharp coral present on the reef structure. Typical dive times at this location are around 45 minutes.

The MV Mars is a wreck site located 4000 metres offshore in the Port Blair Area. Resting at depths between 8 and 16 metres, the structure features reef growth and provides a habitat for various marine life. Divers should be prepared for moderate currents and visibility ranging from 5 to 15 metres. Due to the potential for changing conditions, maintaining proximity to a buddy and the wreck structure is recommended. The site is suitable for beginners, though entry requires a boat. Water temperatures remain consistent between 28 and 31 degrees Celsius throughout the year. Divers should exercise caution regarding lionfish present on the reef to avoid stings.

Minerva Ledge is a large reef system in India requiring boat access. The site features flat coral gardens that taper into deeper waters towards the east. Divers can expect depths ranging from 12 to 24 metres, with an average depth of 14 metres. Conditions are characterised by strong currents and visibility between 15 and 30 metres. Due to the strong currents, this site is suitable for intermediate divers. Species recorded around this area include elongate clams, ocellaris anemonefish, wrasses, crabs, hermit crabs, snails, and sea cucumbers. Hazards at this location include sharks, sharp coral, and strong currents. Typical dives last approximately 40 minutes.

Johnny's Gorge is a reef site located in the Minerva Ledge Area, India, consisting of low-lying rocky outcrops rising from a sandy seabed. The site reaches depths between 20 and 26 metres, with an average depth of 25 metres. Access is by boat only, as the site is situated 18.5 kilometres from the shore. Divers should be prepared for moderate currents and visibility ranging from 5 to 40 metres. Due to the depth and potential for nitrogen narcosis, this site is suitable for advanced divers only. Typical dives last approximately 30 minutes in water temperatures between 28 and 30 degrees Celsius.