About 150 miles.
Wildwood State Park in Long Island, NY has waterfront on Long Island Sound. So you could say that Wildwood IS a long island beach.
It is 155 miles according to Google Maps.
106 miles
289 miles
161 miles
92 miles
122 miles
About 160 miles
Paramus, NJ
It is 151.38 miles according to MapQuest.
55 miles