Morecambe Bay cockling disaster
On the evening of 5 February 2004, at least 22 Chinese labourers were drowned by an incoming tide at Morecambe Bay in Lancashire, North West England, while illegally harvesting cockles off the coast. Fifteen other labourers from the same group managed to return safely to shore.
Source: Wikipedia — Morecambe Bay cockling disaster (CC BY-SA 4.0)