Elder Rock Introduction
Old Man Rock, as the name suggests, resembles an elderly person who has weathered many storms. By crossing the green pastures of Hongtou Village and climbing over cliffs, one can reach Old Man Rock, formed by coral reefs. From the sea, Old Man Rock is particularly clear, showcasing a rock formation rich in exotic island flavors and unique scenery. The geology of Lanyu is mainly composed of andesitic lava containing hornblende and basaltic agglomerates, along with Pleistocene red soil layers, uplifted coral reefs, and Holocene alluvial, debris flow layers, and coastal fringe reefs, all shaped by the processes of marine erosion and weathering, creating Lanyu's most fascinating rocky landscapes. Old Man Rock is a coastal erosion landform, surrounded by a volcanic crater, making it difficult to climb due to the towering rocks. The summit preserves Lanyu's precious Podocarpus macrophyllus. Since it grows at the top and is hard to climb, it has not been subjected to human destruction, resulting in a well-preserved plant landscape. In addition to Old Man Rock, Lanyu's famous rocky landscapes include Hongtou Rock, Crocodile Rock, Twin Lions Rock, Dragon Head Rock, Hen Rock, Jade Girl Rock, Five Holes Cave, Tank Rock, Steel Helmet Rock, Steamed Bun Rock, and Battleship Rock.