i think it is called the "Mergui" or "Phi Phi" archipelago...not sure but my most educatyed guess :D

There are several archipelagos found in Asia. Some of these include the Mergui Archipelago, the Sulu Archipelago, as well as the Japanese Archipelago.

The Mergui Archipelago in Southern Myanmar has over 800 islands, mostly uninhabited. It's currently not possible to travel to these islands without prior permission from the military government - the only people who will grant a permit to visit following a time consuming and lengthly application process.

The Malay Archipelago (or Indonesian Archipelago) is often referred to as the largest archipelago in the world.

The noun archipelago is used for an archipelago of islands.