Songs about water such as oceans, lakes, rivers etc.

Walk On Water:  Eddie Money

Still Water:  Four Tops

Wade In The Water:  Ramsey Lewis Trio

My Bonnie Lies Over The Ocean:  Beatles

Down by the sea    Nilsson

The Great Salt Lake:  Band Of Horses

Bridge Over The River Kwai:  Mitch Miller

The Ocean-Led Zeppelin 

Erie Canal:  Bruce

Many rivers to cross    Joe Cocker