Henley Classic 2016 | Open Water Swimming
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25th June 2023


Henley Mile | Open Water Swimming
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9th July 2023

Various Distances 200m – 4 miles

Club to Pub | Open Water Swimming
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22nd July 2023


Thames Marathon | Open Water Swimming
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13th August 2023

5.5km / 13km


Henley Swim brings people together to swim unique, challenging and unforgettable open water swimming events. We make the entire process as easy and enjoyable as possible, so that all you have to worry about is making memories that will stay with you forever.

We cater for the needs of all types of swimmers, from those entering their first open water swimming event, to experienced swimmers, racers and enthusiasts.

Register for an event to find out for yourself why people return year after year, and why we have won the Racecheck Top Rated Swim Award for 4 years running.


We entered the Henley Swim Festival as a group of families, camping the night before and then children did the Half Mile or Splash, and parents did the Mile. What a brilliantly organised event, quiet camping, great food & beverages the night before in an idyllic spot, and it was great to be so close to the start lines with 10 of us swimming at varying times. Well managed, helpful helpers, well marked course and great food.

Catherine B, Outdoor Swimmer Henley Swim Festival 2021

This is a unique event. Swimming at Sunrise in the Thames is a privilege. You never know how challenging it will be as you swim against the flow. Be warned this is an addictive experience.

Sue B, Selkie Henley Classic 2021

I have taken part in the Club to Pub several times and wouldn’t want to miss it in 2022! It is super safe, fun, and so well organised. The crowd really get behind the swimmers. The evening celebrations are great and the atmosphere is fantastic!

Sara P, Club to Pub 2021

Great event with beautiful scenery all the way along the course. Really well organised and the staff were well-informed and very helpful. The swim was lovely with marshals in canoes the whole way along, and plenty of room to swim your own swim without feeling crowded in the water. There was a good atmosphere on the day and you knew exactly where to go at what time. I’d definitely recommend it!

Sarah M, Thames Marathon 2021

Fabulous event, unlikely other long distance swim events, you’re not going in circles and get to swim in places you not normally would, all in the knowledge your safety is ensured. Transport is well organised, its all well laid out, there is a great vibe, with great food options afterwards.

Pim K, Thames Marathon 2021


Open water swimming events have been held on the Thames since the 1890s, but this more recent reincarnation began in 2004 when two ex-rowers decided it would be fun, and a little bit naughty, to swim the regatta course at first light. The first year it was just Tom Kean, Jeremy Laming and a supporting kayaker. Word spread among their friends, and each year a few more pulled themselves out of bed early on the Sunday morning before Henley Regatta to join the swim.

By 2008 there was so much interest that the 2.1km upstream swim at dawn became official, and nearly 100 swimmers joined in what has now become the Henley Classic.

As open water swimming has grown in popularity, so has the interest in swimming in Henley. While the Henley Classic has maintained its early morning charm and excitement, Henley Swim now organise three further open water swimming events in the summer months, including a long-distance endurance swim from Henley to Marlow, a festival of events for all the family, and an evening swim that ends at the pub.

Every year the events attract both new swimmers and people returning again and again, from all over the world. We welcome you all and thank you for playing your part in building the strong and supportive Henley Swim community that exists today.