The Tōkai region of central Honshu, typically including Aichi, Shizuoka, Mie and southern Gifu prefectures; commonly used in weather reports and administration.
明日の天気は東海地方は晴れの予報です。
Tomorrow's forecast calls for sunshine in the Tōkai region.
東海地方には名古屋市を中心とした工業地帯がある。
The Tōkai region has an industrial zone centered around Nagoya.
旅行で東海地方を訪れて、静岡の茶畑を見た。
I visited the Tōkai region on a trip and saw the tea fields in Shizuoka.