Burma Dive Sites
Burma Banks
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Located 90 nautical miles west of Kawthaung, the Burma banks are far from shore and exposed to wind and waves. Getting to the banks is a time consuming and diesel guzzling operation that was once worth the effort for the large quantity of very big sharks that could be seen here. 
Unfortunately the Burma Banks, like many other Mergui archipelago dive sites have been overfished in the early years of this century and are not as impressive as they once were. Many dive liveaboard safari operators in Burma prefer not to visit the Burma Banks these days.
The Burma banks consist of a series of submerged sea mounts with flat plateaus around 15-25m below the surface and drop offs over the sides down beyond 300m. They were discovered by exploratory Thailand based dive boat operators and were sensational dive sites in the late 1990’s when divers could be guaranteed to see several species of shark most notably large silvertips. Also present were white tip reef sharks, large tawny nurse sharks, leopard sharks plus occasional sightings of scalloped hammerhead sharks and tiger sharks.
This was high adrenaline diving for divers that did not mind rough seas and occasional strong currents. A dive consisted of nothing more than descending the anchor line to the plateau and sheltering under a bommie until deco time or air ran low. Sharks circled the plateaus (they were previously fed by dive boats) and were a fine example of natures power and grace. Descending over the drop off and drifting along the wall sometimes produced sightings of hammerheads and tiger sharks.
Manta rays and eagle rays could also be seen on occasion. Other pelagic species such as tuna, bonito and rainbow runners can still be seen.
These days the nurse sharks remain but the silvertips are seen much less frequently, victims of the fishermen. 
Other pelagic species such as tuna, bonito and rainbow runners can still be seen. Coral life is healthy, particularly on the deeper sections of the walls.
Silvertip bank is closest to Kawthaung and most frequently dived by Burma liveaboards. It is the shallowest seamount at 15m below the surface. The plateau area is about 1km in diameter. Big bank is bigger, about 2km across and still has some large nurse sharks in residence.
Rainbow reef is another large bank that has impressive large table corals on the top of the plateau. Roe bank and Heckford bank are the furthest from Kawthaung and also the deepest so are dived less frequently by liveaboard dive boats. Potato grouper and great barracuda can be found here.
While the truth about these dive sites certainly puts some divers off taking a liveaboard cruise to Burma we feel that knowing the truth before you go is better than being disappointed on the boat. Burma diving still has a huge amount to offer besides the Burma banks dive sites.