九曲洞 Tunnel of Nine Turns

曲折迂迴的在山洞中前進，彷彿有繞不完的彎路，因此取名為「九曲洞」，倒不是因為有九個洞，只是用「九」來形容此處的多彎。

The tortuous course cut by the river has produced a gorge of many curves, and the path of the highway that has been carved out of the cliff face here seems to be an endless aerie of turns. Hence the name, the gorge is so narrow that only a very narrow width is open to the heavens, in what the Chinese call “a thread of sky.”