Erawan Cave - Phrae (ถ้ำเอราวัณ แพร่) Phrae Erawan Cave or Tham Erawan (Tham means cave in Thai) is a cave inside a stone mountain called Pha Tham Chang, right on the border of Amphoe Wangsaphung of Loei and Amphoe Na Wang of Nong Bua Lamphu. Tham Erawan is accessible via a winding staircase of 600 steps.
There is a large Buddha statue at the cave’s entrance. The entrance leads to a huge hall decorated with various types of rock formations. A local folktale, Nang Phom Hom (The Lady with Fragrant Hair), is said to have taken place here. Local souvenir shops are available for sale at a nearby temple.
The cave is 47 kilometers from Nong Bua Lam Phu town. To get there, take Highway No. 210 (Nong Bua Lamphu -Loei), turn right at Km. 13, and continue for approximately 2.7 kilometers.