The Similan Islands is one of the best-known island groups in the Andaman Sea, largely because of the wonders that await beneath the clear-blue waters surrounding it.
They're around 84 km northwest of Phuket. This little archipelago is one of the most interesting diving areas in the world, as well as a favourite destination for yachties and boat tours.
The Similans aren't as dramatically scenic as the limestone islands of Krabi or Phang Nga Bay, which many people have come to associate with the Andaman Sea. Instead, you find low-lying formations covered with thick forest.
Ironwood and gum trees are among the larger trees, while jackfruit, rattan and bamboo form part of the denser undergrowth. The islands are home to crab-eating monkeys, dusky langurs, squirrels, bats, lizards and a good variety of birds (though the monkeys are shy and rarely seen by the casual observer).