Date: Sunday 29th June 2025
Distance: 2.1km upstream
Location: Temple Island Meadows, Henley

Charity Entry: £20
(General Entry normally £78.50)
Fundraising Target: £250

Level Water are the official charity partner for the Henley Classic! This swim gives you the opportunity to swim the stunning, world-renowned 2.1km Henley Royal Regatta course at dawn. This is the ONLY time you will be able to have a safe supervised swim on the course, while it is completely closed to boat traffic.

“The event starts with a short walk to the official regatta start, where the first swimmers will enter the water, just as the sun is rising. This River Thames swimming experience takes you past all the famous Henley Regatta landmarks including the Barn Bar, Phyllis Court and the Members’ Grandstand. As the church and bridge come into sight in the early morning sun, you reach the end of your swim at the Official Regatta Finish.

After a short walk back to the event area you are welcomed by the smell of coffee and breakfast, into the hub of swimmers exhilarated by what they have accomplished before most of the country wakes up.”

Wave Selection

Henley Swim have been given an exclusive opportunity to swim the Henley Regatta course. In return, all swimmers have to be clear of the river by 0630 so it’s important that you select the correct wave based on your anticipated swim time.

Please remember that it is an upstream swim so be realistic with your time and err on the side of caution:

  • WAVE 1 (Juniors) -  Junior swimmers will automatically be put in this wave

  • WAVE 2/2B (Sporting) -Select this wave if you wish to swim at leisure or alongside friends.

  • WAVE 3 - 2 mins 15 secs and 2 mins 30 secs per 100m* 

  • WAVE 4 -  2 mins and 2 mins 15 secs per 100m*

  • WAVE 5 - 1 min 45 secs and 2 mins per 100m* 

  • WAVE 6 (Performance) - you wish to race hard (likely to be in the top 100 swimmers) and average below 1min 45 secs per 100m*

* comfortable speed during a distance swim

Level Water: The Power of Swimming

Level Water provide 1-1 swimming lesson for children with disabilities across the UK. Life changing lessons that teach them the essential skills to learn to swim and fall in love with the water.

Henley Classic - FAQs

  • The Selkie Henley Classic swim is a River Thames swimming event and has several wave options to choose from.

    Swimming on the Henley Regatta course is a privilege and we are very grateful for the support we receive. In return we have to be clear of the river by 0630 so it is important that you select the correct wave based on your anticipated swim time.

    Please remember that it is an upstream swim so be realistic with your time and err on the side of caution.

    WAVE 1 (Juniors and Schools)

    Juniors (age 14-17 on 25th June 2023) and School swimmers will automatically be put in this wave

    Junior swimmers will be set off slightly in advance of the sporting wave.

    WAVE 2 (Sporting)

    Select this wave if you  wish to swim at leisure or alongside friends.

    WAVE 3 

    Select this wave if you comfortably average between 2 mins 15 secs and 2 mins 30 secs per 100m during a distance swim.

    WAVE 4 

    Select this wave if you comfortably average between 2 mins and 2 mins 15 secs per 100m during a distance swim.

    WAVE 5

    Select this wave if you comfortably average between 1 min 45 secs and 2 mins per 100m during a distance swim.

    WAVE 6 (Performance)

    Select this wave if you wish to race hard (likely to be in the top 100 swimmers) and average below 1min 45 secs per 100m during a distance swim.

    Teams – There is one team competition. A team can be made up of any combination of male or female swimmers and any number. The four fastest times will qualify for the competition.  Create or join a team during the entry process.

  • At the Selkie Henley Classic, elite adult swimmers participate in the Performance wave. All swimmers that are 17 or under on the day of the race will swim in the Junior wave.

    Wetsuits are optional for all swimmers.

  • The Selkie Henley Classic is hosted at Temple Island Meadows RG9 3DD, which is just one mile from Henley town centre. Parking is available at the event venue.

  • The course is a unique, straight line, point-to point-swim (ie no turns) and takes advantage of the boomed course of the Henley Royal Regatta. The swim is upstream, the strength of the stream varies from year-to-year, ensuring that no two events are the same.

  • Parking is available at the venue
    Toilets and changing facilities will be provided
    Hot & cold drinks & snacks will be available at the main event area

  • Full timings are given in the information pack. The general rule is to aim to arrive at the event venue around 75 minutes before your wave time.

  • Once you've registered with Level Water, Henley will let you know how you can pre-book camping.

    Basic camping will be available on the Saturday night. The cost is £22.50 per person in either a tent, campervan or motorhome and can be pre-booked when registering for the event.

    Well behaved dogs are allowed at the campsite as long as they are kept under control, on a lead, and are cleaned up after.

    On-the-day camping may be available but will be more expensive.

  • The venue will be open on Saturday afternoon for anyone who would like to give themselves a little longer in bed on Sunday, by collecting their race packs on Saturday afternoon.

  • There will be food and drink available to purchase on the Saturday afternoon and evening, for campers and for swimmers collecting their race packs.

    The food vendors will also be open for breakfast from around 3am to the end of the event at around 9am.

  • We have set up a Facebook Forum called Henley Swim Chatter, where you are able to discuss anything with fellow swimmers from nutrition and training tips to event transport.

  • The water temperature at the Classic depends upon both the outside temperature and the quantity of rainfall in the days and weeks running up to the event. It is therefore very difficult to predict.

    Based on previous years, at the end of June, we would expect the water to be between 17 and 19 degrees centigrade.