My husband and I will be leaving Phi Phi and heading to Railay Beach. We thought it would be great to explore the Phi Phi islands, and Maya Bay by private boat on our way to Railay. Can anyone tell me prices for a full day private boat rental? Can I book when I get to Phi Phi? We would like a speedboat but I think it might be too pricey. Might need to do a long tail that can handle the rough waters. Any insight is much appreciated!