To Go Phayam
Chumsang/ Sairung Waterfall
Located at Baan Pak Chan, Tambon Pak Chan . It far from Muang Ranong district about 80 Kilometer and 16 kilometer from Kra Buri. It can be reached by traveling along the Highway No.4 ( route to Chumporn ), turning left at km. 529 - 530 ( opposite the road way to Pak Chan community. And following the dirt road for another 3 km. . At this waterfall , the waterfall is run only in the rainy season falls hit the rock and splash liked the rainbow , then the people name this Namtok Sai rung ( Sairung translated as Rainbow .