About Nam Hak Subdistrict
Nam Hak (น้ำหัก) is a subdistrict in Khiri Rat Nikhom District, Surat Thani. Its terrain combines rolling land, higher western mountains and lower slopes towards the centre and east.
Khlong Yan is the main waterway, running through the tambon and dividing settled land on its two banks. The local authority also identifies Khlong Tui and Khlong Phai among the headwater streams.
Agricultural communities follow the river and surrounding slopes. The district agricultural office's 2026 plan records eleven villages, showing that Nam Hak covers several local settlements rather than one riverside site. A village name and a specific destination are useful for planning the final approach.