Crews arrived at the state park in Quakertown just after 1:15 p.m. and quickly located the person who was wearing a lifejacket, Robert Sweeney, Assistant Park Manager told Daily Voice.
The individual was not in any immediate stress or danger, and no medical treatment was necessary, he said.
"There are typically a few over-turned sailboat calls every year at Nockamixon," Sweeney said.
"The causes are usually newer participants to the hobby or just a simple mistake on navigating wind conditions and making a maneuver on the lake."
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