Examples from the Web for seaway
I guess he was in hopes it would break with us out in a seaway where we couldn't do anything.
There was no doubt about it: those New Englanders knew how to manage a boat in a seaway.The Dreadnought of the Air|Percy F. Westerman
She pointed to the floor of the cockpit, and there, sliding grotesquely with the motion of the seaway, was Poul Halvard.Wild Oranges|Joseph Hergesheimer
The seaway is foul with wrecks, foundered on beach and sandbar—the tide vexed by under-water obstructions.Merchantmen-at-Arms|David W. Bone
There's only two or three that can run away from her, and she is a peach in a seaway—just like a duck.