Organised by the Blyth Running Club, the Sands Race is held along the beach from Blyth to Seaton Sluice and back again. This is an annual event, handicapped by age and sex and held on the first Sunday in December. See the article at http://www.blythrunningclub.org.uk/sands_race_main.html history of the Sands Race.
An entry from can be found here
Blyth Sands Race