Rip Current · The Narrow River That Runs Out To Sea
unseel.com · breaking waves pile water on the beach · it drains out through the gap
Set-up 15 cm
Neck 1.0 m/s
Width 20 m
Phase WAVES BREAKING
Sandbar — waves break here
Breaking foam & piled-up water
Feeder currents along the beach
Rip neck & head (green dye)
Swimmer caught in the neck
Unseel.com · Rip Current