Bo Phran Khuk Khao features indentations in the rock resembling human knee prints. Located at the edge of the sacred well, these are believed to be the marks left by the hunter Phran Boon as he knelt to wash his game, according to the legend of the Buddha's Footprint discovery. These prints stand as significant spiritual evidence, connecting ancient lore to the physical site and allowing visiting pilgrims to experience the wonder of long-standing local legends. Observing these knee marks alongside the Spear-Resting Hole enhances the imagination and reinforces deep faith in the sanctity of this historic location.