summer retreat; cool summer place
Refers to a location, often a resort or highland area, where people go to escape the summer heat.
See also: 避暑
Karuizawa is a famous summer retreat.
今年の夏は避暑地で過ごしたい。
I want to spend this summer at a cool summer place.
Compound of 避暑 (escaping summer heat) and 地 (place, area).