Tank Rock Introduction
Tank Rock is a stunning rock formation located by the coral reef coast, resembling a tank covered with green seaweed. There are large holes that penetrate the rock, and lucky visitors may see local cows and sheep wandering through. The scenery is breathtaking. The geology of Lanyu consists mainly of andesitic lava containing hornblende and basaltic agglomerate, as well as Pleistocene red clay, uplifted coral reefs, and Holocene alluvial and colluvial deposits. Through natural processes of marine erosion and weathering, Lanyu has been sculpted into fascinating rock formations. In addition to Tank Rock, other famous rock formations in Lanyu include Red Head Rock, Crocodile Rock, Twin Lion Rock, Dragon Head Rock, Old Man Rock, Elephant Nose Rock, Hen Rock, Five-Hole Cave, Jade Girl Rock, Steel Helmet Rock, Warship Rock, and Bun Rock.