Get involved Swimming Loch Ness Swim 2025 Dive into the largest body of freshwater in the UK and brave the chilly temperatures of Loch Ness for one of the UK’s most iconic open water swims. I'd like to swim Loch Ness with Aspire Our Loch Ness swim involves teams of up to six people taking it in turns to swim for one hour from Fort Augustus to Loch End. The relay route is 22 miles long with depths of up to 230 metres. The water temperature in Loch Ness can average as little as 11 degrees, but is usually about 15. This swimming event isn't for first timers! Wetsuit and non-wetsuit boats are available. Watch our Loch Ness Relay Channel Swim I'd like to swim Loch Ness with Aspire Supported by: Other swimming events How we help Manage Cookie Preferences