Great question — answering as the UphillTech team:
Well it turns out that Cape May has a beach guide online . It lists details of 14 beaches in the area. Each entry begins with "Beach Fees". The following beaches are free, as in you don't need a beach tag: North Wildwood Beach Sea Isle City Beach (Wednesdays only) Upper Township Beach Wildwood Beach Wildwood Crest Beach
Full answer by hippietrail: https://travel.stackexchange.com/a/8034 (CC BY-SA 4.0).
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