Washing of the Water - Peter Gabriel
The Water Song - Incredible String Band
River in the Moonlight - George Cates
The Ballad of Wild River - Gene Woods
In a Shady Nook by a Babbling Brook - Three Suns
Loch Ness Monster - John Carter Cash
Hell or High Water - Johnny Dowd
My Bonnie Lies Over the Ocean - The Beatles
The Dock of the Bay - Otis Redding
Rain on the Roof - Lovin’ Spoonfuls
Water Without Land - Sourpatch
The Ever Constant Sea - Rod McKuen
Waiting for the Rain to Fall - Chris Isaak
April Showers - Al Jolson
Walk on the Ocean - Toad the Wet Sprocket
You can validate your puzzle solution with certitude.