Prachuap Khiri Khan is about 300 km south of Bangkok. Express air-conditioned buses run from Bangkok's Southern Bus Terminal, taking around five hours. Trains from Bangkok's Hua Lamphong station also stop here — the journey is roughly four to five hours on an express service.
From Hua Hin, it is about an hour south by taxi or car. Buses and minivans also run between the two towns throughout the day.