Kilab-Kilab Falls in the municipality of San Isidro, Bohol, is a picturesque cascade surrounded by lush tropical forest — and by an enduring supernatural legend that transforms every visitor death at the falls into evidence of engkanto retribution. Communities near the falls report hearing mysterious drum-like noises that carry through the forest, particularly after a drowning or accident at the waterfall. According to local folklore, the drumming is the sound of engkantos celebrating.
The engkantos of Kilab-Kilab are believed to be the original spirit inhabitants of the forest and waterfall who have watched their territory encroached upon by human development — logging, farming, and tourism. Each death at the falls is interpreted not as an accident but as an act of engkanto vengeance, the spirits reclaiming a life in payment for the destruction of their habitat. The celebratory drumming that follows is their expression of satisfaction, a message to the living that the debt is being collected.
The drum sounds themselves have been described by multiple witnesses as deep, resonant, and rhythmic — distinct from natural sounds like thunder or falling rocks. They seem to originate from no fixed point, reverberating through the forest canopy and off the rock walls of the ravine. Some listeners describe the rhythm as funereal, while others insist it carries a joyful cadence, as if the engkantos are genuinely celebrating.
The belief system surrounding Kilab-Kilab Falls reflects a broader Boholano relationship with the natural world that is both reverential and fearful. Waterfalls throughout the Philippines are considered portals between the human world and the engkanto realm, and the sound of falling water is believed to mask the conversations and activities of unseen beings. At Kilab-Kilab, the drums add another layer to this acoustic supernatural landscape — a sound that shouldn't exist, celebrating deaths that locals believe are not accidental.