Many of the pictures we have chosen to publish here were taken by our photographers at events to mark the 10th and fifth anniversaries of that fateful evening in 2004.
Our thoughts are with all those who lost their lives, and their families and loved ones, as the 20th anniversary approaches.
7. Morecambe cockling tragedy 20 years on
Sigh of the Sea event in 2014 which marked the 10th anniversary of the cockling tragedy. Photo: Nigel Slater
8. Morecambe cockling tragedy 20 years on
Lanterns are carried onto the beach near the Clock Tower in Morecambe for the Sigh of the Sea event to mark the 10th anniversary of the cockling tragedy. Photo: Nigel Slater
9. Morecambe cockling tragedy 20 years on
A poignant picture taken at the Sigh of the Sea event in Morecambe in 2014 to mark the 10th anniversary of the cockling tragedy . Photo: Nigel Slater
10. Morecambe cockling tragedy 20 years on
Members of the Chinese community at the 10th anniversary Sigh of the Sea memorial in 2014. Photo: Nigel Slater
11. Morecambe cockling tragedy 20 years on
Musicians at the Sigh of the Sea 10th anniversary event on Morecambe beach. Photo: Nigel Slater
12. Morecambe cockling tragedy 20 years on
The memorial near Morecambe Lifeboat Station. Photo: Nigel Slater