Literary term for an idyllic, secluded paradise, often used in the phrase 桃源郷 (とうげんきょう).
この谷はまさに桃源郷のようだ。
This valley is truly like an earthly paradise.
Standard kanji spelling for this literary term.
From Chinese 桃源 (táoyuán), literally 'peach source', referring to the legendary Peach Blossom Spring (桃花源) described by Tao Yuanming, an idyllic utopia hidden from the outside world.