We have individual races, four person relay event and endurance races
2 lengths and 4 lengths, 122m and 244m respectively, 10 lengths + endurance.
Mixed teams. There must be at least one man and one woman. Teams consist of four competitors who swim one 61m length each.
The endurance is for experienced cold water swimmers only. 10 lengths of the lido (610m) plus one length for each degree centigrade above freezing up to a maximum of 1,220m.
For the endurance you will need to have swum 1,000m at 6C or less, preferably this winter.