William Docwra in Great Yarmouth is entering its 120th year of churning out sticks of rock, and little has changed in the production process.

In its 1950s and 60s heydays, the Great Yarmouth factory, which had 140 workers, was making 120,000 sticks of rock for resorts across East Anglia and other parts of the UK.

It now produces 25,000 sticks a week from its Regent Road site, but – much like the resort itself - is enjoying a longer season thanks to other year-round markets including weddings and corporate work.

Crowds gather in the shop to watch the cocktail of sugar and glucose transformed into colourful sweet souvenirs.

It involves a two-to-one mix of sugar and glucose boiled to nearly 150 degrees then poured on to water-cooled steel plates. Coloured elements are created using food colouring.

The Docwra family's rock making - and connection with the resort's soon-to-be rejuvenated Venetian Waterways which was the idea of William Docwra - is featured in a behind the scenes video made by the Greater Yarmouth Tourist and Business Improvement Association to help promote the area.