expression, noun
heartbreak trip; sentimental journey
A trip taken to heal emotional pain, especially after a breakup or loss. Often implies a solo journey or a trip with a close friend to recover.
失恋の後、彼女は傷心旅行に出かけた。
After the breakup, she went on a heartbreak trip.
傷心旅行で訪れた海辺の町で、少し元気を取り戻した。
In the seaside town I visited on my sentimental journey, I regained a little of my spirit.
Compound of 傷心 (heartbreak, emotional wound) and 旅行 (travel, journey).