The sand at the surf line has been washed flat.
Sparks glanced toward the surf line, made his eyes come back to her face.
He tore himself away and swam out past the surf line to make his way down the beach.
Murdock had already lost sight of Mac, and thought he must have reached the surf line by now.
You can easily observe this phenomenon while standing at the edge of a surf line.
The water beyond the surf line was incredibly calm.
One could see heads bobbing in the water past the surf line.
"There it is," Mike said, pointing to a break in the surf line.
What sort of jerk lies in the surf line in the dark?
The surf line was drawing back, further than she had ever seen it.