The Burma Banks in the Andaman Sea are around 200km off the coast of Burma (Myanmar), north-west from the Similan Islands. There are six ‘banks’ - actually the tops of large submerged mountains - Heckford, Coral, Big, Silvertip, Rainbow & Roe.
These underwater mountains were rediscovered in the 1980’s. Before this, their existence was known but their exact location was not.