River swimming events

River swimming events

Experience beautiful locations from a new perspective in complete safety.

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River swims in the UK

Organised river swims allow you to experience beautiful locations from a new perspective in complete safety. River swims can range from less than a kilometre to several miles - some events even use the tide to make it easier! Grab your wetsuit and discover a new way to adventure!

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River swims in 2025

Featured events are listed below - select your region to see all events.

Swim the 2.1km world-renowned Henley Royal Regatta course at dawn. Exclusive access to the river as the sun rises makes this a bucket-list event like no other!
  • Sun 13 Jul
  • £60-£69
Henley-on-Thames, Berkshire, UK

Selkie Henley Classic

Swim the 2.1km world-renowned Henley Royal Regatta course at dawn. Exclusive access to the river as the sun rises makes this a bucket-list event like no other!

  • 2.1 km river swimming
A summer evening 1.5km swim to the pub taking place in the heart of Henley.
  • Sat 26 Jul
  • £64
Henley-on-Thames, Berkshire, UK

Club to Pub

A summer evening 1.5km swim to the pub taking place in the heart of Henley.

  • 1.5 km river swimming
  • Sat 7 Jun
  • £50-£60
Totnes, Devon, UK

Wild Dart Swim and Aquathlon

Last year, Wild Running Events changed the format, so that swimmers could swim with the tide for the 5k, the whole way, getting out at Ashprington Point Field.

  • River swim 2
  • Standard aquathlon
  • Sun 15 Jun
  • £78
Witney, Oxfordshire, UK

Lock 2 Lock 4K

An open water downstream swim in the river Thames from Eynsham Lock to Kings Lock.

  • 4 km river swimming
  • Fri 11 - Sun 13 Jul
  • £29-£110
Henley-on-Thames, Berkshire, UK

Outdoor Swimmer Henley Swim Festival

A bumper weekend of swimming, shopping, entertainment and fun for all the family.

  • River swim 5
  • Sun 3 Aug
  • £120
Oxford, Oxfordshire, UK

Lock 2 Lock 10K

Following the beautiful, meandering River Thames from Farmoor to Godstow, this 10K swim includes three locks with feed stations at each.

  • 10 km river swimming
  • Sun 10 Aug
  • £104-£210
Marlow, Buckinghamshire, UK

Thames Marathon

A long-distance swimming marathon with multiple distances and feed stations from Henley-on-Thames to Marlow.

  • River swim 4