Tips for Dive Tourists
The best season for diving is from December to April.

Dive only in the areas opened and permitted for Scuba Diving by the A&N Administration.

Do not dive with unqualified or unregistered dive operators as it may be perilous to your life
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Avail the services of Scuba Dive instructors with certification of International Organizations such as PADI, CMAS, NAUI, BSAC or SSI.

A Decompression chamber facility is available at Clearance Diving Unit, Navy, Port Blair, Tel: 232871.

Do not stand or walk on coral reefs.
Do not break live coral or collect dead corals.

Do not enter the National Parks without valid permission.

Any person committing a breach of any of the above laid down regulation of the Wildlife Protection Act shall be liable for punishment as per law.
Avoid Careless anchoring:    Responsible divers anchor only when there are no permanent mooring buoys to tie to. Never drop anchor onto, or even close to, living corals. Careful anchoring means placing the anchor in sand patches or channels or other low impact areas.  Anchor chains and ropes can crush corals as the boat swings with shifts in current and wind.An anchor which drags over a reef can cause severe damage. Divers and snorkelers should always check the anchor, moving it to a suitable area and securing it properly on arrival if necessary.
Avoid Standing on corals: Many divers seem unaware of the fragile nature of corals and the problems caused when a diver stands, kneels or sits on corals.  This either kills coral polyps or causes wounds in the delicate tissue making the coral vulnerable to infection.  Infections can spread quickly and kill the entire coral colony. Find a patch of sand before standing up.
Dangling equipment: Badly trained divers drag their console and octopus regulator across of reef which snags coral in its path.  When they get stuck, they are often pulled free breaking off chunks of coral.  Careless use of fins also results in damage to corals.  On no account should divers or snorkelers collect live corals, shells or fish.
Buoyancy control: Good diving technique is also important over reefs, for your own safety and comfort and well being of the corals. Do not dive with too many weights and make sure you maintain good buoyancy control. Good buoyancy control is the easiest way to prevent damage to the reef. Badly trained divers tend to overweigh themselves and compensate by inflating their buoyancy control devices (BCDs).They swim in the overweighed (head-high, legs down) attitude that causes their fins to mow down the corals as they swim over the reef.
Photography: Even touching corals can wipe off the thin layer of mucus which protects them from bacterial infection.  If you do have to steady yourself while taking underwater photography, think carefully about what you hold onto.