海域(かいいき)area of ocean

日本(にほん)の海域(かいいき)はどこまでですか？

What is the extent of Japan's area of ocean? {area of ocean}

他国(たこく)の海域(かいいき)に侵入(しんにゅう)してはいけません。

You must not intrude into the area of ocean of other countries. {area of ocean}

日本(にほん)周辺(しゅうへん)の海域(かいいき)ではどんな魚(さかな)がよく取(と)れますか？

What kind of fish is commonly caught in the area of ocean around Japan? {area of ocean}

フィリピンの海域(かいいき)で台風(たいふう)に遭(あ)った船(ふね)が沈没(ちんぼつ)したそうです。

It seems that a ship that encountered a typhoon in the area of ocean around the Philippines has sunk. {area of ocean}

そういえば、あの海域(かいいき)で沈没(ちんぼつ)した船(ふね)は結局(けっきょく)見(み)つかったのだろうか？

Speaking of which, I wonder if they ever found the ship that sank in that area of ocean? {area of ocean}