To the east of Tahuangtzui is a long and narrow saddle ridge, site of the Lungfengku (or Shuangchunghsi) hot springs. For a full look at them, you've got to go to Tunshu Vocational High School at the intersection of the Peitou-Yangmingshan Highway and Hsingyi Road.
在大磺嘴東側隔一狹長鞍部，就是龍鳳谷（雙重溪）溫泉區，它的全貌，要走到陽投公路和行義路的交叉處惇敘高工才看得到。