Scottish National Open Water Championships The Scottish National Open Water Championships have for the past few years taken place in Loch Venachar in the beautiful surroundings of the Loch Lomond and Trossachs National Park. Loch Venachar Sailing Club provide a base for our competition, with the event taking place over two days every summer. Competitors take part in events from 500m to 10km, along with a 4x500m relay event. We also have Challenge Events for those who just want to see what all the fuss is about by swimming in lochs! Our Open Water Championships show that swimming doesn't have to be in a pool to be safe and fun. But be warned, it is highly addictive! Click here for images from the Scottish National Open Water Swimming Championships 2016 Grand Prix Rules Scottish Open Water Grand Prix Rules Individual 2018 Scottish Open Water Grand Prix Rules Relay National Championships Entry Forms