Xiaoqikong Ancient Bridge

The Xiaoqikong (Small Seven Holes) Ancient Bridge is a Qing-dynasty stone arch bridge spanning a fast-moving river, its seven low arches barely above the waterline. The bridge is small and simple, but it names the entire scenic zone and serves as its visual symbol: the image of the seven arches reflected in the water, surrounded by subtropical forest, is what appears on every piece of Libo promotional material.

The bridge is the entry point to the Xiaoqikong scenic walk, which leads upstream through a gorge with multiple scenic features: the 68-step cascade, a staircase waterfall dropping through successive limestone pools; Wolong (Crouching Dragon) Pool, a large still section with mirror-like reflections; and the Water Forest, where trees grow in flooded ground with their roots submerged in the turquoise stream. The walk from the bridge to the Water Forest takes about two hours at an unhurried pace.

The karst river chemistry that creates the turquoise colour — calcium carbonate supersaturation in the water — is the same mechanism as in Plitvice Lakes in Croatia and Jiuzhaigou in Sichuan, but the combination here with subtropical broadleaf forest produces a visual density those other sites lack.

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A story
The seven-arch bridge was built in 1836 during the Qing dynasty as part of a trade route through the area. The arches are small — barely large enough for a person to walk through — which is why the bridge was never replaced with a larger structure as the route's importance grew. The surrounding forest and river have since reclaimed everything else from that era; the bridge remains because it became the scenic zone's centrepiece rather than an obstacle to modernise away.