Mikawa Bay (三河湾 Mikawa-wan) is a bay to the south of Aichi Prefecture, Japan, surrounded by Chita Peninsula to the west and Atsumi Peninsula to the east and south. Its area is approximately 604 km2. Pollution of the shallow, enclosed waters of the bay has become a concern in recent years. Islands Shinojima :ja:篠島 Himakajima :ja:日間賀島 Sakushima :ja:佐久島 Tsukumijima Nezujima Takeshima :ja:竹島 (愛知県) Kajishima :ja:梶島 Butsu Mikawa Oshima :ja:三河大島 Mikawa Kojima Maeshima :ja:前島 (愛知県) Okishima :ja:沖島 (愛知県) Himeshima :ja:姫島 (愛知県田原市) Nojima Bays of Japan Landforms of Aichi Prefecture