Ko Dam:

Located on the rumbline between Ao Nang and Phi Phi this is a favorite day time stop over for yachts travelling between the two. There are wonderful beaches and the snorkeling is very good.
Scenically they are similar to the Phi Phi islands and Ao nang albeit on a smaller scale. From time to time there is a small makeshift restaurant where drinks and a simple meal can be had. Although Ko Dam is mostly used as a daytime stop there are two secure overnight anchorages as well. Between 4 pm and 10 am you are likely to have the entire archipelago to yourself.