The Yunhai Tai-Power Hut in Renai Township, Nantou County, is located 4.5 km away from the Nenggao Traversing Historic Trail. The building was formerly the Weishan Police Post built by the Governor-General in Taiwan in 1931. Later, it was burnt down during the Wushe Incident, and rebuilt again on the southern ridge of Mount Weishan at an altitude of 2,386 meters.
In terms of topography and space, the Yunhai Tai-Power Hut is on a wide and flat land with a good panorama. There are often seas of clouds in summer and autumn, hence the name Yunhai (sea of clouds). In the post-war period, the building was refurbished several times by Taipower, but only the interior and so the appearance remained roughly the same as during the Japanese occupation. The open space in front of the hut is currently where climbers rest or camp.
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