Beach · New Jersey
Bay-side beaches (Plum Island, Horseshoe Cove) allow leashed dogs year-round. Ocean-side beaches allow leashed dogs only Sept 15-Mar 15.
Miles of bay-side beach open to leashed dogs year-round; the ocean side opens up outside piping plover season.
The policy above is the standing rule of the agency that manages this land, as published on its own pages. Official page.
Rules change, and seasonal beach rules change twice a year. Check before a long drive.