One can easily reach Pothgul Rajamaha Vihara by travelling nearly 4 km ahead from Ratnapura town along Pothgul Vihara road and then proceeding about 2.5 km forth across Karangoda by turning right at Kotamulla junction. This place of worship is located on top of a wonderful mountain which is in the opposite side of Kalu River, parallel to Sabaragamuwa Maha Saman Devale. This sanctuary has also been gifted with few land-grants as an honor to Maha Dhamma Rakkhitha thero who once gave shelter to King Walagamba who was hiding himself here and there due to rival calamities. A recumbent sculpture of Lord Buddha that would measure about 37 cubits long and a small stupa has been erected in a boulder cavern which is also enriched with drip-ledges.
An endless dark tunnel and a bottomless deep well that is on the boulder are among the amazing things available in this sacred place. Folklore recites that a flower fallen into this well would appear from the well in the land of Saman Devale. The authors have no assurance as how far the folklore speaks the truth.