noun
suikinkutsu; buried earthen jar that makes sound when water drips into it
A traditional Japanese garden feature: an inverted earthen jar buried in the ground, often near a washbasin, that produces a pleasant echoing sound when water drips into it.
日本庭園で水琴窟の音を楽しんだ。
I enjoyed the sound of the suikinkutsu in the Japanese garden.
Compound of 水 (sui, 'water'), 琴 (kin, 'koto, a stringed instrument'), and 窟 (kutsu, 'cave, hollow'). The name evokes the musical, cave-like quality of the sound.