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.
1. Morecambe cockling tragedy 20 years on
A rake used for cockling visible on the sands on the 10th anniversary of the cockling disaster in 2014. Photo: Garth Hamer
2. Morecambe cockling tragedy 20 years on
Memorial at Hest Bank, scene of the cockling tragedy. Photo: NEIL CROSS
3. Morecambe cockling tragedy 20 years on
From left, Alan Sledmore, Stephen Clarke and Phil Forster with cockle bags, picked on the night of the tragedy, which were uncovered by the waters of the River Kent in Morecambe Bay in 2014, around the time of the 10th anniversary of the disaster. Photo: Garth Hamer
4. Morecambe cockling tragedy 20 years on
A submerged 4x4 believed to have been used to transport the Chinese cocklers on the night of the tragedy, which was revealed by the waters of the River Kent in Morecambe Bay in 2014, 10 years after the disaster. Photo: Garth Hamer