It is an interesting place to visit that is created by nature. Located in Ob Luang National Park. It is a Khao Khad strait with rocky cliffs flanking the river, creating a deep canyon. The depth of the cliff is measured from the bridge. Ob Luang reaches normal water level approximately 32 meters, the narrowest part is 2 meters. The length of the strait is approximately 300 meters. Nature has created wonders for this part of the land. The word “Ob” or “Ob” is the local language. Refers to a narrow strait. “Luang” means large. Ob Luang is a specific name used to refer to a rocky strait. Giant size with the Mae Chaem River squeezed through.