Nemo Reef in the Port Blair Area is a shore-entry site featuring both natural and artificial reef structures. Suitable for beginners, the site reaches depths between 1 and 16 metres with mild currents and visibility ranging from 10 to 25 metres. Divers and snorkellers frequently encounter various anemonefish, including maroon, blackback, ocellaris, and pink skunk species. Other common sightings include wrasses and elongate clams, while uncommon species such as sea kraits, orangestripe triggerfish, longnose filefish, and painted spiny lobsters are also recorded. Be aware of boat traffic and sea urchins in the area. Guided tours and cafe facilities are available on-site.

Lighthouse is a reef site located 2500 metres from the shore in the Port Blair Area. This site is suitable for beginners and offers depths ranging from 3 to 23 metres, with an average depth of 12 metres. Divers typically spend 45 minutes underwater. Access is by boat only, and the site supports night diving. Conditions vary, with visibility ranging from 5 to 30 metres and mild currents. The water temperature remains consistent between 28 and 30 degrees Celsius throughout the year. Hazards at this site include sharks and sharp coral. Guided tours and boat charters are available through local facilities.

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.

Andaman Islands Reef is a marine site located in the Port Blair Area, India, offering depths between 8 and 25 metres. This reef is suited for intermediate divers who can manage moderate currents. Visibility typically ranges from 10 to 30 metres, and water temperatures remain stable between 28 and 30 degrees Celsius. Access is exclusively by boat. Divers should be aware of the presence of sharks and exercise caution around sharp coral, particularly in shallower sections. Given the variable visibility and current, thorough surface support and equipment preparation are essential before departure. Always consult with your boat operator regarding current conditions before descending.

Tribe Gate is a collection of reef patches surrounding a larger, oval-shaped reef structure in the Port Blair Area. This site is suitable for beginners, with depths ranging from 3 to 15 metres and an average depth of 8 metres. Access is by boat, as the site is located 3000 metres from the shore. Divers typically experience mild currents and visibility between 12 and 20 metres. Water temperatures remain warm throughout the year, ranging from 28 to 31 degrees Celsius. Hazards at this location include jellyfish, sea urchins, sharks, sharp coral, and stonefish. A typical dive duration is 45 minutes.

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 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.

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.