Open Water Swimming Calendar 2025. Over 2,500 athletes are expected to participate at these world aquatics. European aquatics is delighted to announce the schedule and locations for the 2025 european aquatics open water cup, a highlight of the marathon swimming calendar.
Open, and the speedo winter junior championships (east and west) will be. There are options for swimmers of all ages and abilities, from 500m to 10km, so everyone is welcome to join in the fun!