There are actually three glass beaches all former city trash dump sites that cough up beautiful sea glass.
What To Do: Search for rare ruby reds (from pre-1967 auto tail lights) or sapphire gems from apothecary bottles. Snap a photo, but leave the glass behind for others to discover.
Local Lore: From 1906 to 1967, everything from cars to batteries to bottles, cans and appliances were unceremoniously pushed over the cliffs into the ocean a common practice of seaside cities for centuries. Mother Nature responded to this abuse with a nice surprise in the form of smooth, colored sea glass treasure in a rainbow of colors.
Best Picnic Spot: On the rocks and cliffs overlooking Glass Beach #3 (the most northern of the three beaches; located in MacKerricher State Park).