From/to Surat Thani: Air-con public bus from Surat Thani runs every hour starting at 07:00, passing the Surat Thani Train Station (at Phun Phin) 15 min later (so first bus from here is at 07:15). Tickets can be purchased at the Surat Thani Bus Station located at Talat Mai 31 or at a stall on the train station's bus stop. Transit time is around 2 hours. Price is 120 baht. There should also be a minibus service departing every hour from 07:30 to 17:30 but the last one can be cancelled. The public bus is comfortable and more reliable.http://wikitravel.org/en/Khao_Sok_National_Park