But seeking these glass pebble beaches out is well ... chock full of colorful sea glass. Chemical Beach, which sits south of the harbor, housed Seaham Chemical Works from the 1860s until 1885.

Tonnes of rock from a crumbling cliffside has fallen onto Seaham Hall Beach in a landslide. The cliff started to crumble on Tuesday and by midday, huge sections of it crashed onto the sand below.