Silago got her name from the word “murcielago” which is a Spanish term for bat, because of this species' dominance in the locality. Proof to this is the giant bat sanctuary at Barangay Catmon. Along the coastal barangays of the town, there are clean beaches and a structure designed by nature lying in the town's deep blue sea known as Pelada Rock, also locally known as “Batong Dako" meaning large rock, which was occupied and utilized as a camp by the Japanese Imperial Army during the Second World War. The peculiar beauty of this rock is enhanced with the abundance of birds hovering and built their nest on it, sea snakes making the rock as their dwelling place, with fish and other marine products surrounding it. The rock is located just a short distance from the shore of Barangay Laguma and Barangay Salvacion.
