海かい路ろ

noun, adverb

sea route; by sea

Refers to a route taken over the sea, or traveling by ship. Can be used as a noun or adverbially.

• 彼かれらは海かい路ろでヨーロッパへ向むかった。

  They headed to Europe by sea.

• 海かい路ろの安あん全ぜんを確かく保ほする。

  Ensure the safety of the sea route.