Koh Tup / Ko Mor
from Phuket

The waters around these islands in the Krabi archipelago are so shallow that white sandbars can be seen everywhere at low tide - making it easy to walk from one island to another. Even Chicken Island (Koh Kai) are within walking distance. Of course, if you're too lazy to walk, you can also swim ... which is worth it, because snorkeling is rewarded with a clear view of the lively underwater world.

Those who are fed up with walking on the seabed can also climb to the top of Koh Tup for stunning views of the surrounding islands.