Glenarm Beach
Sheltered pebbly bay by Glenarm harbour on the Causeway Coastal Route, a favourite of Antrim sea glass jewellers.
Cushendall's beach sits below Lurigethan mountain at the foot of the Glens of Antrim, with the golf course at its far end. An Antrim sea glass jeweller describes it as full of quartz and pebbles as well as sea glass, and it's where her family has found sea glass marbles most often.
Sea glass among quartz and mixed pebbles, with sea glass marbles the stand-out finds; the golf course end is mentioned as a good area.
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Last updated 23 October 2026
Sheltered pebbly bay by Glenarm harbour on the Causeway Coastal Route, a favourite of Antrim sea glass jewellers.
Sand-and-shingle beach by the marina where an 18th-century glassworks once stood, and lumps of glass still wash up.
Shingle shore below Carrickfergus Castle and along Scotch Quarter, worked by local sea glass jewellers on Belfast Lough.
Stranraer's waterfront on Loch Ryan, where scattered sea glass turns up along with plenty of old pottery from local dairies.