Does the questioner want to ask "What is the song about the sea, how big and wide the sea is"? "The Sea". According to the query on Kugou Music Network, "The Sea" is a song sung by Beva Children's Songs. It was released on May 11, 2017 and included in the album "Good Children's Songs". Excerpts from the lyrics: The sea, how big and wide the sea is, rocking and rocking like a cradle, rocking over and dotting the white sails.