You can take the train at Hua lamphong railway station. Travelling to Bangkok to Phun Phin district of Surat Thani railway station and bus approx. 160 km (2 hours) travel to Phang Nga province.
You can train a train at Hua Lampong railway station in Bangkok to travel to the station district Phunphin. Then the bus about 160 kilometers (three hours) trip to Phang Nga.
The train, you can take the train at สถานีรถไฟหัวลำโพง Bangkok travel to Railway Station District phunphin, Surat Thani province. The bus about 160 kilometers. (3 hours) travel to the group.