About Bang Di Subdistrict
Bang Di (บางดี) is a subdistrict of Huai Yot District, Trang. The council describes higher land and mountains in the west and northeast, contrasting with lowlands along the Trang River through several villages.
The SAC archaeological register identifies Phu Khao Sai within Bang Di, with cave deposits and historical Buddhist material. It is a particular archaeological location rather than the whole tambon.
The council office is in Moo 10, while river villages and archaeological approaches lie elsewhere. For a site visit, confirm the exact destination and current access locally; the administrative map point should not be used as the entrance to a cave or religious compound.