Northern Ireland
© Mat Tuck · CC BY-SA 2.0 Ballycastle Beach
Sand-and-shingle beach by the marina where an 18th-century glassworks once stood, and lumps of glass still wash up.
4 beaches
Sea glass beaches in Northern Ireland
From the Antrim coast to County Down, Northern Ireland's rocky shores and old harbour towns turn up sea glass and sea pottery, especially along stretches near former bottle works and busy ports.
Northern Ireland
© Mat Tuck · CC BY-SA 2.0 
Northern Ireland
© Alex Liivet from Chester, United Kingdom · CC0 Carrickfergus Castle Shore
Shingle shore below Carrickfergus Castle and along Scotch Quarter, worked by local sea glass jewellers on Belfast Lough.
Northern Ireland
© Mike Faherty · CC BY-SA 2.0 Cushendall Beach
Pebble and quartz beach below Lurigethan in the Glens of Antrim, known locally for sea glass marbles.
Northern Ireland
© Mike Faherty · CC BY-SA 2.0 Glenarm Beach
Sheltered pebbly bay by Glenarm harbour on the Causeway Coastal Route, a favourite of Antrim sea glass jewellers.