What does 海面 mean?
海面 is a Japanese noun meaning “sea level; (surface of) sea” in English. It is written as 海面 in kanji, かいめん in hiragana, and kaimen in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
大きな岩が一つ海面から突き出ていた。
A big rock rose out of the sea.