Ao Nang to Koh Phi Phi

A 2 hour ferry can easily be organised from Krabi at any of the travel agents for 300THB, if leaving from Ao Nang a public Tuk Tuk (will likely beep if your with your bags and has Ao Nang - Krabi written on the side) should set you back 50THB but drops you away from the pier so either organise in advance to pay extra or negotiate a taxi for 100THB.

If you get there early enough I would recommend getting on the roof and relaxing, like this: