We're in unknown waters now, and a captain's place is at the helm.
In truth I felt as if my life was stranded out on the high dive, about to leap into unknown waters.
Some fish were more willing to take risks in unknown waters than others when taken from their environment and introduced to a dark tube.
In effect, it threw composers into unknown waters and held their heads under.
He wanted to leap into the unknown waters of his own soul.
No way to distinguish a moving shadow from the night darkness of unknown water.
In unknown waters they encounter an island civilization which claims to have a prophet who fell from the stars.
It had turned a grueling trip across unknown waters into an unexpected coup.
You don't know any better than I what monsters might lurk in these unknown waters.
It would be a leap of faith into unknown waters.