Register your interest in Open Water Swimming

Get Your Membership Now to Join the Club

Sessions must be booked in advance online


We are back open!

The open water swim at Pennington Flash is back open however there are a few changes we have had to put in place due to the current situation regarding COVID-19.

We are only open to member so please ensure you have bought your membership online. – HERE

There will now be session each day that you will need to pre-book for online. – HERE

You will only be allowed onsite if you have Pre-booked for that session.

Season Opening Times:

Tuesday – 17:30 – 19:30

Thursday – 17:30 – 19:30

Saturday – 7:30 – 9:30

Sunday – 17:30 – 19:30


Hire a Wetsuit for a swim session – HERE

Hire a Wetsuit for an event – HERE

Purchase a Wetsuit – HERE

To see our weekly swim schedule – Check out our Swim Timetable HERE

For Directions to the Open Water Swim Venue – Click HERE


New Rules

Sessions must be booked in advance online – you will not be allowed on site if you have not Pre-booked your place!


There will be 3 session each day with no more than 25 people per session.

Saturday Session: 7:30-8:15am. – Arrive Onsite at 07:15 and leave by 08:30

8:00-8:45am. – Arrive Onsite at 07:45 and leave by 09:00

8:45-9:30am. – Arrive Onsite at 08:30 and leave by 09:45

Tues/Thurs/Sun Session: 5:30-6:15pm– Arrive Onsite at 17:15 and leave by 18:30

6:00-6:45pm– Arrive Onsite at 17:45 and leave by 19:00

6:45-7:30pm– Arrive Onsite at 18:30 and leave by 19:45

By Pre-boking your place you agree to abide by the rules set out below and also the governments COVID-19 rules including distancing – VIEW HERE

Swimmers will only be permitted on site 15minutes before the start of the session and must arrive before the start of their selected time slot in order to avoid a crossover of people in the car park.

You will be able to exit the water anytime during your session.

Inside will remain shut meaning no access to changing rooms/showers/toilets/refreshments

No spectators will be allowed on site only the people swimming.

The swim will be open to members only.

Membership must be purchased online before attending a session and you will be required to enter your membership number when booking a session.

Swim essentials such as wetsuits, neoprene warmth, goggles, swim caps, dryrobes will be available – card payments only.





Accurately Measured Courses

We offer accurately measured courses of: 470m, 810m, 930m, 1020m, 1300m, 2000m

Wetsuit Session Rental

We have wetsuits available to rent from £10, £15, £20 and this can be prebooked.

Free Onsite Parking

There is free onsite parking available close to the water.

Hot Showers And Hot Drinks

We have hot showers and hot refreshments available during and after the swim.

Official Location Of UK Ironman

Pennington Flash is the official location for the UK Ironman

Latest Temperature Recording


Recorded on Saturday 23rd May To find out when Swims are on – Check out our Swim Timetable HERE




  • Membership and £7 pay as you swim.


  • A one day full season pass, pick your day and every swim each week on that day is free (Day must be selected at time of membership and cannot be changed).


  • Family Membership for 2 adults and 2 children and £7 pay as you swim for adults and £3 pay as you swim for children.