noun
A yojijukugo referring to an idyllic, hidden utopia, derived from the Chinese tale of the Peach Blossom Spring. Used in literary or figurative contexts.
この谷はまるで武陵桃源のような美しさだ。
This valley is as beautiful as an earthly paradise.
桃源郷 is a more common term for 'paradise on earth' or 'Shangri-La', while 武陵桃源 is a rarer, more literary yojijukugo with the same origin.
From the Chinese tale 'Peach Blossom Spring' (桃花源記) by Tao Yuanming, where a fisherman discovers a hidden utopia in Wuling (武陵). The Japanese yojijukugo combines 武陵 (Wuling) and 桃源 (peach blossom spring).