1) driving along the National Highway #35 (Thonburi-Pak Tho route) via Samut Songkram province then reaching to Highway #4 or A2 or else AH2 (Phetchakasem Road--the main route through Southern) via Phetchaburi province and Hua Hin to Prachuap Khiri Khan, Chumphon, Ranong provinces. Passing Kapur, Suk Samran districts and then reaching Khura Buri and Takhua Pa districts of Phang Nga respectively. Total distance is approximately 788 kilometers.
2) When reaching Chumphon, Alterating to take Highway #41 passing Lang Suan and Tha Chana through Khiri Rat Nikhom districts of Surat Thani province (last two ones) by turning right traffic at Ban Tha Rong Chang Junction to take Highway #401, then driving via Khiri Rat Nikhom and Ban Ta Khun. Remind yourself prepare to take a new route that is Highway #415 for destination Plai Phraya district along the road through Ao Luek and Takhua Thung districts. Turning back to the Highway #4 or A2 or else AH2 again, driving through traffic along this route, passing Ban Khok Kloi and straight onto the road. Total distance is estimately 790 kilometers, infact the latter route is the best way local used to drive mostly.