noun
kids' corner; indoor play area
Refers to a designated space for children, typically in shopping malls, airports, or public facilities, with toys or play equipment.
ショッピングモールのキッズコーナーで子供を遊ばせた。
I let my child play at the kids' corner in the shopping mall.
空港にキッズコーナーがあると助かります。
It's helpful when there's a kids' corner at the airport.