The "four islands" is a popular day trip from Ao nang, taking in the group of islands closest to the coast - the ones that can be seen on the horizon from the beach.
Krabi Four Islands Adventure is the best way to explore the four Islands surrounding Krabi. The national parks of Chicken Island, and Tub Island, relaxing on white sand beaches, taking photos with the iconic rock formations at Poda Island, and exploring Phranang Cave Beach or Phranang Cave Bay is a beautiful beach with limestone mountains and cliff.