Wat Tham Phet Phimaan is a Buddhist tunnel cave temple near Khao Yai National Park in Nakhon Ratchasima Province, in northeastern Thailand.

In the main hall are some look nimit (fig.) on display. These large, cannonball-like stones are normally buried in the ground underneath the bai sema (fig.), at the eight cardinal points around an ubosot.

From here, several stairs and corridors slowly lead visitors to the exit via lesser halls with Buddha statues and shrines, starting with a steep staircase that takes visitors into the second hall.