Open waters are really horrendous to race in.
Most clupeiforms inhabit more or less offshore open waters in abundant schools.
Early explorers who ventured into open waters often mistakenly believed they had discovered a new ocean.
An enormous abundance of free-swimming (planktonic) species occupies the open waters of lakes and oceans.
The darker open waters now absorb more solar radiation, accelerating the melt.
(Patrolling the open waters for events like triathlon, marathon swimming and sailing is a separate matter).
"Something could be out in the open waters, and during a tide event, there could be an open tide gate.
A few species seem to require open waters, and some notopterids can even tolerate slightly brackish water.
With luck, it would one day grow large enough to swim the open waters of its birthright.
This arm of the sea, called Horseshoe Cove, begins near open waters, where the bay meets Eggemoggin Reach.
We need to tow it to open waters and keep sailing.
