Pranburi, Prachuabkirikhan, is very great place for relaxing. This place is not far, just 2 and half hours from Bangkok, you will recover from any tireness you have. The beach is so private and silent. Service there is over standard but everyone is so friendly. Seafood there is pretty great and various. You will enjoy without any doubt. One more thing you cannot miss is Beach Spa which is really great. Go there and enjoy!!