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Simplified Chinese Japanese English Korean The basalt columns of Chihsi are located on the mid‑section of the western coast line of Xishan Township. This stretch of coastal columnar basalt is particularly spectacular and diverse, with a predominant dark black color that gradually turns to brown as one moves northward. The shapes vary widely, ranging from upright, curved, lying down, to leaning positions. Chihsi Rock Waterfall originates from fish ponds above the Chihsi basalt columns. After rain or when the fish ponds drain, water flows over the rock, resembling a waterfall—hence the name. Another explanation is that the curved joint structure of the rock resembles a rushing torrent of water, throwing itself into the sea. The fractures displayed in the “rock waterfall” are a type of “curved joint,” which gives a different visual effect from the typical “columnar joint” admired elsewhere. These small to large “rock stone waterfalls” hang along the sea cliff, some plunging straight down, others slanting out, all majestic and distinctive. The terrain of Chihsi Rock Waterfall is formed by a combination of “sea‑eroded cliff” and “sea‑deposited platform.” Consequently, access is not convenient; one must travel along the coastal industrial road, stepping over piled basalt blocks to reach it. The Chihsi basalt columns extend from the back wall of Chihsi to Niu‑jiao Bay in Da‑chi. In recent years, weathering and collapse have become increasingly severe, so visitors should remember to watch for slippery ground and ensure their own safety! **Recommended visit duration**: 0.5 hours