I think I remember those on Barnegat bay (very shallow water in most places) but what I remember most were the Garvey races. I was a lifeguard - Island Beach State Park circa 1979A Scows on Barnegat Bay. Thirty feet long. Some had three cockpits. Twin daggerboards and rudders. Big spinnakers.
It was the 1950s, and they could tow a waterskier. And they capsized, too.
The A Scow sailor man was raaather rich, but he felt it important to race against other raaather rich A Scow sailor mans.