The One on the River Henley 3000m

🏊
3000m
📅
Sunday 21st September 2025
📍
Henley-on-Thames, Oxfordshire, UK

The 3000m ONE on the River Henley Swim is an exhilarating open-water challenge set in the iconic stretch of the River Thames at Henley-on-Thames.

www.onerace.events
www.onerace.events

Known for its beautiful scenery and rich rowing heritage, this long-distance swim offers participants the chance to test their endurance along a well-marked course in calm, flowing waters.

Surrounded by lush countryside and the historic charm of Henley, the 3000m swim provides a picturesque backdrop for a demanding but rewarding experience. Ideal for seasoned swimmers or those looking to push their limits, the event combines excellent organization, stunning scenery, and the thrill of tackling a substantial distance in one of the UK's most celebrated river locations.

Enter the race here.

www.onerace.events
www.onerace.events
www.onerace.events
www.onerace.events

Find your Catch training plan for the

The One on the River Henley 3000m

Train For

24 Weeks

Start Now

Train For

20 Weeks

Start Now

Train For

16 Weeks

Start Now

Train For

12 Weeks

Start Now
If your timings don't perfectly match, don't worry. Select the number of full weeks you have remaining before the race, & we'll keep your training going 'til race day. For example: if you're 22 weeks from race day, select the 20 week course.

Included in all Catch courses

Catch’s swimming courses give you everything you need to crush your goals.

Personalised training plan
arrow

Swimming sessions will drop into your inbox every week, customised to your goals, lifestyle & ability.

Custom technique video course
arrow

Each week, a fresh video with a new aspect of front crawl will be available to watch, which'll match your weekly training plan.

Waterproof training cards
arrow

Posted to your door, these cards will guide you through your sessions & drills.

Access to the Club
arrow

Find local swim pals through Catch’s online community. The club content hub has heaps of technique tips, race recommendations, adventure ideas & more.

What's included in catch memberships

Other Races you might be interested in

Castle Race Series Belvoir Castle 2.5km Swim

The 2.5km Swim at Belvoir Castle is a captivating open-water race set within the picturesque grounds of the historic Belvoir Castle in Leicestershire. Scheduled for July 19-20, 2025, as part of the Belvoir Castle Multisport Festival, this event offers swimmers the opportunity to navigate a 2.5km course in the serene West Lake, all while enjoying the stunning backdrop of the castle.

Find out more

Castle Race Series Cholmondeley Castle 2.5km Swim

The 2.5km Swim at Cholmondeley Castle offers a captivating open-water experience within the serene Deer Park Mere, nestled in the expansive grounds of Cholmondeley Castle in Cheshire. Scheduled for June 21, 2025, this event is part of the Cholmondeley Castle Multisport Festival, which also features a 5km swim and a 1-mile swim, catering to a variety of swimming enthusiasts.

Find out more

Dartmouth Open Water 3km Swim Race

The 3km Dartmouth Swim is a stunning open-water race set in the picturesque waters of the River Dart in South Devon. Taking place in the charming coastal town of Dartmouth, this event offers swimmers a scenic and rewarding challenge along one of the most beautiful river courses in the UK.

Find out more

Dock2Dock - 3km

The Dock2Dock swim offers a unique opportunity to experience open water swimming in the heart of London’s Royal Docks. With towering historical cranes lining the water and the iconic skyline of Canary Wharf and the O2 Arena in the background, this event combines the thrill of urban swimming with the challenge of long-distance racing.

Find out more

The One on the River Marlow 3000m

The 3000m ONE on the River Marlow Swim offers a thrilling and demanding open-water challenge set in the serene waters of the River Thames at Marlow.

Find out more

Not ready to take the plunge?

Sign up to Catch Free

You’ll get access to the online swim community with training session ideas, mini courses, a swim content hub & local swim squad.

Get Free Access Now