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.

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.

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.

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.

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.

Slope is a reef site located off the white channel marker at the entrance to the channel leading to the Havelock jetty in the Port Blair Area. The reef features a gentle gradient, descending from 4 metres to a sandy bottom at 20 metres, with an average depth of 7 metres. The site is accessible only by boat and is suitable for beginners. Divers can expect mild currents and visibility ranging from 15 to 30 metres. Water temperatures remain warm throughout the year, between 28C and 31C. Hazards at this location include boat traffic and local marine life.

The Wall is a marine dive site located 3500 metres from shore in the Port Blair Area. This site features a wall and reef topography suitable for intermediate divers. The depth ranges from 10 to 40 metres, with an average depth of 21 metres. Access is by boat only. Divers should be prepared for moderate currents and visibility that fluctuates between 5 and 40 metres. Water temperatures remain consistent throughout the year, ranging from 28 to 30 degrees Celsius. Hazards at this site include the depth, strong currents, and the presence of lionfish and stonefish.

Red Light House is an oval-shaped reef located 2500 metres from shore in the Port Blair Area. Featuring a central channel marker, the site includes an artificial reef structure described as a scooter wreck. Depths range from 3 to 23 metres with an average of 10 metres, making it suitable for beginners. Divers experience mild currents and visibility between 15 and 25 metres. Water temperatures remain consistent between 28C and 30C throughout the year. Access is by boat only, and the site supports night diving. Species recorded around this area include wrasses, elongate clams, and various reef fish and invertebrates.