The BIG Welsh Swim has now closed and you will not be able to sign-up for it. Please check the Info for any organiser updates.
This event is in a testing state, and is not open for public sign-ups until the organiser has launched it.
Logo for The BIG Welsh Swim

The BIG Welsh Swim

22 Jul 17

Sorry. The 1 Way, 2 Way & 3 way options are now FULL. Half Way entries are still available.

The BIG Welsh Swim - Brand new event for 2017!

All aboard the swim train!

Catch the narrow gauge train to the end of Llyn Padarn to start your swim for a truly unique experience! With the spectacular backdrop of the Snowdon mountain range, the historic Dolbadarn Castle and Welsh slate quarries you can choose to swim the length of the lake, either once, twice or three times! We have a mid length option too!

22nd July 2017

Sponsored by Zone3

For full details please go to:

The Course

The BIG Welsh Swim will take place in Llyn Padarn, Padarn Country Park, Llanberis, Snowdonia National Park, North Wales. The swim route will involve lengths of the lake (each length is 3km) with a choice of 4 different distances to choose from. Wetsuit and non-wetsuit places are available! The lake is surrounded by some of Snowdonia’s most stunning scenery including beautiful woodland, a historic castle, the old slate quarries that tower above the valley and the small narrow gauge stream railway that we’ll use to transport you to the end of the lake!

location: Gilfach Ddu station, Llyn Padarn Railway, Llanberis, North Wales. LL55 4TY.


  • Mid way: 1km
  • One way: 3km
  • Two Way: 6km (you will not take the train on the 2 way swim)
  • Three way: 9km

Aid stations: 3 stations over each length of the lake: both ends and half way point.


Online entry opens: Friday 26th August 2016.

Online entry closes: Midnight  16th July 2017.

You must be over 18 years of age on the day of the race to enter the event. 16+ participants will need parental consent to take part - a form wil need to be signed on the day of the event. Under 16’s can complete the Half way swim if accompanied in the water by an adult who agrees to take complete responsibility for them.

Please note: To enter a child under 16 years of age you will need to go through the 'Mid Way' application process for yourself and when you get to the 'Shopping Basket' you will need to click on 'Add another' to apply for your child. By entering a child the accompanying adult agrees to take full responsibility for them during the entire event.

Entry prices

EARLY BIRD OFFER! On or before 1st Jauary 2017
  • Mid way: £30 / Junior (age 15 & under): £25
  • One way: £38
  • Two Way: £40 (no train ticket included)
  • Three way: £45

From 2nd Jauary 2017

  • Mid way: £35 / Junior (age 15 & under): £25
  • One way: £43
  • Two Way: £45 (no train ticket included)
  • Three way: £50

Entry fee includes:

  • Full water safety cover
  • Train ticket (excluding 2 way entries)
  • Event swim hat
  • Event timing
  • Fuel and hydration during event
  • Race medal
  • Free event photos
  • Prize for winners in each category – supplied by Zone3


  • Swim hats supplied by event organisers must be worn at all times when in the water
  • Wetsuit
  • Goggles
  • Tow floats may be used but are not mandatory for wetsuit wearing participants

Additional mandatory equipment for non-wetsuit competitors

  • Tow float (any type)

Water temperature

Going on average water temperatures for the end of July over the last few years, we expect the water temperature in Llyn Padarn to be between 14°C and 16°C for the Big Welsh swim event. The temperature in the lake can vary quite a lot depending on the amount of rainfall and sunshine we have but we will keep you updated on the water temperature in the run up to the event.

Event Sponsor

We are super exited to have Zone3 on board as our Big Welsh Swim event sponsors. They will be suppling the winners of each category with a prize, plus there will be a few spot prizes given out at random. Zone3 are also offering all Love SwimRun participants a 15% discount on their Swimming wetsuits! You will receive a special discount code once you have registered.

Charity Partner

Love SwimRun are supporting Snowdonia Giving during this event. Snowdonia gives a lot to us... we need to give a little back.

Snowdonia National park is seeing increasing numbers of visitors meaning that the area is more than ever in danger of becoming a victim of it’s very own success! To ensure that Snowdonia retains its beauty, natural diversity and unique appeal we need to ensure that it's environment, wildlife and and community are not degraded or destroyed in anyway. Snowdonia Giving is a way of us all easily donating a small amount of money to help save this precious place  through projects such as path maintenance, new path building, improved accessability, tree planting, invasive rhododendron clearance, and litter picks.

You can make a voluntary donation when you enter any of our events or you can donate on line at Thank you!

Rules & Terms & conditions

Please go to:




Chloe Rafferty


Dates and Status

Date: 22/07/2017

Status: Closed

Total Places: 371

Places Available: ??

see Info

For each sign-up, the organiser pays the Service Fee of 4% (min 50p). You pay no surcharge

Event Address
Gilfach Ddu station, Llyn Padarn Railway, Llanberis, North Wales, LL55 4TY