Songs about ocean/earth?

I really like music about ocean, and would like to add to my library
of music. My preferred genres are reggae/punk rock/folk. If you have
any songs you could share with me, I'd appreciate it.

By the way, I don't like those songs with music videos of a girl going
to the beach with their friends or boyfriend. I'm talking about music
that's more about a spiritual (not religious) connection rather than
something someone simply enjoys seeing during the summer. An example
would be Ocean by Slightly Stoopid.