The One on the River Henley 3000m

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.

🏊
3000m
📅
Sunday 20th September 2026
📍
Henley-on-Thames, Oxfordshire, UK
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.

Start your 30-day free trial
www.onerace.events
www.onerace.events
www.onerace.events
www.onerace.events
Find your technique course on Catch
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

Start your 30-day free trial
www.onerace.events
www.onerace.events

How Catch works

Set your goal · Get your plan · Swim smarter · See real progress

Red outlined boxing ring with the word START inside.
Set your goal
Tell us about your swimming, your experience & what you’re training for.
Red target with an arrow hitting the bullseye.
Get your plan
Track your distance, build consistency & improve week after week.
Red outline icon of a smartphone with a bulleted list displayed on the screen.
Swim smarter
A fully personalised plan & video lessons built for you.
Red outline icon of a person swimming in water with waves below.
See real progress
Watch your technique lesson. Follow your session from your watch. Train with purpose.

Catch Gold

£12.50
/month
billed annually - £149.99/yr

save 38% vs monthly billing

Coach-led. Personalised. Built to get you faster.
Personalised training plan
Weekly technique video lessons
1:1 coach chat with Rebecca
Apple Watch & Garmin sync
Smart progression & tapering
Start your 30-day free trial

Catch Free

Free forever
Structured coaching at no cost
2 structured sessions/week
Monthly technique video
Smart intensity & distance slider
Apple Watch & Garmin sync
Community & Library access
Get started free

Other Races you might be interested in

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 Saturday 18th July 2026, 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

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 Saturday 20th June 2026, 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 Swim 3000m

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 3k is the ideal step up for swimmers who are comfortable in open water & ready for a distance where pacing, efficiency & focus start to matter. This guide covers everything from building your training week to race day strategy - so you can make the most of one of London's most unique swim venues.

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 for Gold yet?

Start with Catch Free.

Get structured swim sessions each week, a monthly technique lesson, watch sync & full community access - free forever.

Get Catch Free

Join our mailing list for swim tips, inspiration & news

You can unsubscribe any time

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.