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With every wave new sea glass is washed up onto the beach and snatched back, never to be seen again. You can spot sea glass at any time during low tide, however some hunters choose to follow the tide out a few hours after hide tide. There are many beaches in Seaham, which all will have some sea glass washed up onto them, however the most popular beach for finding sea glass is Seaham Hall Beach (also known as North Beach or Vane Tempest).
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The different shades of glass were determined by the chemicals used in making the glass, as well as the temperate of the melt and the length of time it was melted for. You’ll also find yellow, red, blue, aqua and even multi-coloured pebbles or milk glass which comes in pastel shades of blues, yellows and green. The most common glass to find in Seaham is clear and green glass, as this was the most popular coloured glass produced by the bottleworks. You’ll find all sorts of different colours and types of glass including codd marbles, which were used as a seal for fizzy drinks, safety glass which has wire reinforcement running through it, bottle necks and sea pottery! No two sea glass pebbles are the same, in shape or colour. The bottleworks would dump large amounts of waste glass straight into the North Sea and that’s where Seaham’s sea glass story began! That’s why with each new tide, you’re certain to find colour little gems along Seaham’s shore, which have been shaped and smoothed by the North Sea for over 100 years. The bottleworks produced up to 20,000 hand-blown bottles every day, in different colours and designs including hand crafted bottles, perfume bottles and household glass, all of which were distributed across the globe. Image of Londonderry Bottleworks credit East Durham Now and Then. Seaham boasted the largest glass bottle works in Britain – The Londonderry Bottleworks, operating from the 1850s to 1921. Seaham and nearby Sunderland were home to many bottleworks and glass making factories during the Victorian and Edwardian eras. Sea Glass can be found on many beaches around the world, but the amount of glass and the different colours you can find at Seaham make it a ‘must-visit’ site for collectors. Sea Glass is the name given to man made glass which has been discarded into the sea, then tumbled and shaped by the sea over several years before returning to the shore. What is Sea Glass and where did it come from? The lively harbour town of Seaham is found on the Durham Heritage Coast and is world-famous for its abundance of unique sea glass, which people travel from far and wide for a chance to collect. No matter what day of the year you choose to stroll along the beautiful beaches of Seaham, you’re certain to spot at least one or two people doing the ‘sea glass stoop’ along the beautiful beaches of Seaham.