I put this in your earlier thread about beaches, thought it might be useful
Depends where you are going - I spent quite a while down in Railay, is lovely, has to be accessed by boat though! Was very relaxing, and a good choice of accomodation from cheap to expensive. If you stay there alot of the day trippers go home and its nice and quiet. Can also do rock climbing etc and tonnes of snorkelling.
Cheap longtail ferries from Ao Nang (near Krabi)
Ao Nang is handily located for speedboats trips to the other islands (Phi Phi, Chicken, Monkey, Poda, the one from The Beach and Bamboo (which was my favourite!) too.
Thought Phi Phi was very busy.
Maya bay is The Beach one
Didn't realise you could stay on it! Might be a good idea as otherwise can be busy with daytrippers.
Yep it gets incredibilly busy during the day, but at night there's only 30 max on the whole island! Very cool.
Technics if you are looking for a day or two to kill then I'd recomend doing it. For 1500bht we got;
10am leave on the longtail boat
snorkeling with black tip reef sharks on the way
monkey beach,
cliff jumping, - (which might sound fun to do naked at the time, actually isn't)
lunch on the boat,
tour round the small island (which is actually a Thai national park)
sunset on the beach with no day trippers in sight,
evening meal & free bucket!
+ sleeping bag/mattng and shelter to sleep under if it rains.
I think you can only book this from the island of Phi Phi which happens to be the closest island. But you can book day trips from Krabi.