The ~ is the time of year when a place has most tourists or visitors. (BRIT)
A typical high-season week in a chalet costs about ?470.
? low season
N-SING: also no det
HIGH SEASON
Meaning of HIGH SEASON in English
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012