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The Big Bala Swim 2024

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Saturday 1st June 2024

Entries Open
Tuesday 22nd August 2023
Entries Close
Monday 27th May 2024 at 20:00
Entries So Far
323 Participants
Waiting List Entries
3 Participants
Entry Fees
250m (Juniors 8-15)   £28.00   
250m   £30.00   
500m (Juniors 8-15)   £30.00   
500m   £35.00   
1.5km (Juniors 8-15)   £40.00   
    £43.00 (from 01/11/2023)
1.5km   £52.00   
    £55.00  (from 01/11/2023)
4.5km   £75.00   
    £79.00  (from 01/11/2023)
9km   £85.00   
    £89.00  (from 01/11/2023)


Event Organiser - Chloe Rafferty

To enter you must first Log In or Register your Details with SiEntries.

Some of the options for this event are not currently available so waiting lists are being used for these options. To get a waiting list entry for one of these options just enter as normal. No payment is required at this stage as there is no guarantee of being offered a place. If the Event Organiser is able to offer you a place they will send you an email inviting you to enter. You will then be asked to come back to this site and make your payment to confirm your entry. For more details please see our Waiting List Help.

The BIG Bala Swim

Catch the historic stream train along the shores of Llyn Tegid, Wales’ largest natural lake, to start your swim! Surrounded by the beautiful Aran, Arenig and Berwyn mountain ranges, the lake has suberb views and plenty of wildlife to spot along the way. There are 5 distance options to choose from so there is a swim to suit everyone.


The Big Bala Swim Event Schedule:

Please ensure you read the full event information on the event website before entering:


The Course

Bala Lake Railway to Llangower station where you’ll find the beach start. For those that want a bigger challenge we also have a 9km swim that takes in two lengths of the 4.5km course. We have three shorter swim options of 250m, 500m and 1.5km as well that are open to children of 8 years upwards (must be accompanied on the swim by a fee paying adult).

Wetsuit and non-wetsuit places are available!

location: Llyn Tegid, Snowdonia National Park, North Wales.
Registration: Clwb Rygbi Y Bala, Maes Gwyniad, Tegid Street, Bala, LL23 7DZ

Swim Distances:

  • NEW! 250m
  • NEW! 500m
  • 1.5km
  • 4.5km (catch the train to the start!)
  • 9km (2 lengths of the 4.5km course)

The swim course is linear, marked by a line of inflatable buoys, with swimmers swimming in both directions during the event. The 9km distance takes in two full lengths of the course. The 4.5km is one length of the course (having caught the train to the start point). The 1.5km, 500m and 250m swims involve swimming out and around an inflatable marker buoy before returning to the finish line.

Cut off time: There is a cut off time of 5 hours for all distances. Additionally, 9km swimmers must reach the turn around point at Llangower in 2hrs 15mins from their start time or they must retire. The race organisers and appointed staff can retire a participant at any time if they judge them not capable of finishing due to fatigue, poor physical condition or any other reason.


Online entry closes: 25th May 2024. (No entry changes can be made after this time)

You must be over 16 years of age on the day of the race to enter the event. Children aged 8 and above can complete the 250m, 500m or 1.5km swim if accompanied in the water by an fee paying adult who will take complete responsibility for them. One adult per child.

Entry numbers are strictly limited!


Entry prices

(Early bird prices are the same as 2023 prices – offer ends 30th September 2023) (Junior = age 8-15 years)

  • NEW! 250m Junior: £28
  • NEW! 250m:  £30
  • NEW! 500m Junior: £28
  • NEW! 500m: £35
  • 1.5km Junior: Early bird £40 /£43
  • 1.5km: Early bird £52 / £55
  • 4.5km: Early bird £75 / £79  (includes train ticket)
  • 9km: Early bird £85 / £89

Entry fee includes:

  • Full water safety cover
  • Train ticket (for 4.5km swim only)
  • Event swim hat
  • Electronic timing
  • Food at 9km feed station and at event finish
  • Race souvenir
  • Event photography
  • Prize for winners in each distance category

Event Rules & Entry Terms & Conditions 

Please read the updated 2024 Event Rules and Participant Declaration which can be found below, and terms and conditions of entry throughly before signing up. You can read them in full here

Please be aware that we offer a no refunds and no deferral policy. Please see Terms and Condtion clauses 5 and 6 regarding optional Refund Protect insurance and the options you have for transferring your entry. Please only enter this event if you are happy with these terms.


View the Event Disclaimer / Terms and Conditions.

View the Event Cancellation / Refund Policy.

This event offers the option to purchase XCover, so that participants may be able to get a refund if they are unable to attend due to unforeseen circumstances.

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