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Race the Sun - Yr Wyddfa - Snowdon

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dawn to dusk triple challenge

Take on this incredible triathlon-style team challenge against the backdrop of the stunning Eryri (Snowdonia) National Park.

Race the Sun is an incredible one-day charity fundraising challenge that sees teams of two or four compete from dawn until dusk to cycle, hike and paddle around the breathtaking Welsh countryside in a race against the setting sun.

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key information

  • Date: 2025 coming soon!!
  • Location: Llanberis, Eryri National Park (Snowdonia), Wales
  • 2-person team: TBC
  • 4-person team: TBC
Views from Caernarfon Castle


At dawn, you'll set off from the event base on a 30-mile bike ride that begins with a ride to the coast. From there you will follow the River Seiont as it flows out of Llyn Padarn and joins the sea at Caernarfon with its historic royal fortress.

Here the route rides along coastal roads before returning inland with a stunning backdrop of Snowdonia ahead of the final push that brings you back towards Llanberis ready for the next phase of the challenge!

A hiker admiring the views form the top of Yr Wyddfa (Snowdon)


Once you've donned your hiking boots it's time to embark on a 9-mile return walk along the Llanberis path. This route offers a nice gradual climb that follows the iconic Snowdon Mountain Railway, before your final ascent to the summit of Yr Wyddfa (Snowdon).

Sitting at 1,085m above sea level, Yr Wyddfa is the highest mountain in Wales and England that offers unforgettable views of the Welsh countryside and Llyn Padarn below where the water phase of the challenge will take place.

Two women rowing a two-seater kayak on a lake


Lifejackets on, it's now time to take on the final stage of the challenge!

In either a kayak or rafted canoes, your team will work together to complete a 2-mile circular route on the waters of Llyn Padarn, a lake nestled amidst some of Eryri's (Snowdonia's) most spectacular scenery, including the imposing Llanberis Slate Quarry. 

Once completed, all that's left is a short walk to the finish line for a well-deserved drink on us and a celebratory BBQ!


Race the Sun serves up enough adventure to challenge those looking to lay down a fast time, as well as those who just want a fun, exhilarating day with friends and family.

It's truly a charity fundraising challenge not to be missed, and every pound raised will support life-changing research across the UK to help save and change the lives of sick and vulnerable children. 

We will be with you every step of the way, helping you with training and fundraising tips to make sure you have an unforgettable day before the celebrations begin!

I can highly recommend getting involved with an Action event, not only for participation in a personally challenging event, but also to support a very deserved charity. I will definitely participate again in the future!

Race the Sun finisher
A team of four men showing off their medals whilst having a drink

Event Includes

  • Bike mechanics and first aiders
  • Changeover stations with drinks and snacks
  • Team awards & finishers medal
  • Marshals and signage
  • Safety briefing
  • Canoe or kayak equipment
  • Timing tracker & GPX route files
  • BBQ and celebratory drink at the finish line
Tom and his little sister

race for a reason

Race the Sun for children like Tom

Tom was just four years old when tests revealed he had Duchenne muscular dystrophy. Nothing could have prepared his parents for the devastating news that this disease would likely rob their son of his future. Now aged 13, Tom is following the heartbreaking progression of Duchenne – he can no longer walk or sit up from lying down and relies on a wheelchair. That's why Action is funding urgently needed research that could lead to an effective new treatment for ALL children with Duchenne. 

Frequently asked questions


What is Race the Sun?

Race the Sun is a team challenge fundraising event for teams of two or four people, with the aim of completing three disciplines (cycling, hiking, and canoeing/kayaking) in as fast a time as possible!

Where is Race the Sun?

The event HQ is in, Llanberis, right in the heart of Eryri (Snowdonia).

What is the challenge route?

The challenge takes you on a journey through the heart of the stunning Eryri (Snowdonia) National Park. The route starts with a 30-mile bike ride along mainly coastal roads (suitable for road or hybrid bikes) with a total ascent of 1,883ft.

For the next phase, you will hike a 9-mile route (this includes the return journey) along the Llanberis path to the summit of Yr Wyddfa (Snowdon). Before taking on a 2-mile circular course on the lake of Lynn Padarn.

See the provisional route here.

Please note that the route is subject to change at any time, and without prior notice, although we will do our very best to communicate any changes in plenty of time.

How fit do I have to be?

Race the Sun is achievable by people with a reasonable fitness level who are prepared to train beforehand. The more you train, the more you’ll enjoy the challenge. It’s a great incentive to get fit and work a load of different muscles, whilst knowing you’re raising funds for an excellent cause at the same time. Check out our handy training plan to get your race ready.

What is the minimum age to take part?

Participants must be at least 18 years old and be in suitable physical condition to undertake the challenge as set out in the itinerary. 16-17-year-olds may also participate in challenges if accompanied on the challenge by their parent or guardian.

Is it a relay?

No, all team members must compete in each discipline. It’s a team event so you’re only as fast as your slowest team member, you need to stick together!

How long does it take to complete?

Some teams will complete the challenge in as little as five hours, while for some it may take the whole day. Some teams want to compete for the fastest time and others want to simply complete the course and enjoy the day – it’s really up to you!

Is there a registration entry fee?

Yes, it’s £99 for teams of two, and £198 for teams of four (plus the minimum fundraising target). That’s less than £50 per person for an amazing day that you won’t forget in a hurry!!

When do entries close?

Registration closes at 17:00 on Tuesday 27 February, or sooner if places sell out first. The entire Race the Sun 2023 series sold out before the registration deadline, so be sure to secure your place early to avoid disappointment!

What if I don't have a team yet?

Don’t worry if you haven’t confirmed your whole team yet; you can register now to ensure that you don’t miss out, and then add teammates later via the online booking platform.

Is it possible to take part on my own?

No. Taking part as a team is what makes Race the Sun so special, and what sets it apart from other events. If you’re unable to make up a team then please contact us, and we may be able to match you with teams looking for members.

Is there a fundraising target?

Yes. Race the Sun is a fundraising event for children’s charity, Action Medical Research. Money raised will help fund groundbreaking medical research to save and change the lives of babies and children. Learn more about the work of Action Medical Research here.

The team fundraising target is £950 per team of two, and £1,900 per team of four. Teams need to raise 50% of the fundraising target two months before the event date to secure their place on the event. We ask teams to do this to ensure that the charity will not be out of pocket. The remaining fundraising needs to be with the charity 6 weeks after the event.

What if our team can’t reach the target?

Please get in touch with the Events Team if you have any concerns about reaching your target and we can talk through your options with you. We have lots of resources to help you reach your target and remember, the earlier you start the easier it is!

Please be aware that if you do not raise 50% of the fundraising target two months before the event then your team’s place may be at risk and you may not be able to take part.

Will Action help with fundraising?

Yes, it’s what we’re here for! Once you’ve signed up, we’ll be in regular contact with the team captain with fundraising ideas and advice, as well as materials and resources to get you started! You can also read through our comprehensive fundraising guide.

What bike do I need?

We recommend using a road bike or hybrid bike for this event.

As the route is on-road we would not recommend using a mountain bike. However, if you have trained on it and are confident you can complete the course you are more than welcome to use it. 

All participants must provide their own bike, which should be in good working condition. We recommend servicing your bike before the event. On-site bike mechanics will be available at registration on Friday evening, and throughout the event to help with mechanical issues encountered on the event.

Can I take part on an e-bike?

Yes, but please note in the interests of fairness that by using an e-bike the entire team will not be eligible for any of the ‘fastest team’ award categories.

Please also ensure to carry spare batteries, or other spares specific to e-bikes, as these may not be available from the bike mechanics.

Are canoes/kayaks provided?

Yes. We provide the canoe/kayak, paddles, and buoyancy aids, you’ll just need to wear suitable clothes and shoes that you don’t mind getting wet. Just in case!!

No previous experience is necessary, and fully qualified instructors will be on-hand to help and keep everyone safe.

What is included in the event?

  • Online safety briefing before the event
  • Breakfast, packed lunch, drinks and snacks available at Transition Stations/ Event Hub
  • Fully supported route with marshals and signage
  • Bike mechanics and first aiders
  • Timing tracker & GPX route files
  • Kayak/canoe equipment
  • Team awards & finishers medal
  • BBQ and celebratory drink at the finish line

What food and drink are included?

There will be pastries and fruit in the morning before the start for breakfast. Lunch, snacks and water refill points will be available at transition stations during your challenge and when you cross the finish line there will be a BBQ and drink waiting for you!

If you feel that you’ll need more than this, please bring it with you.

Will there be vegetarian, vegan and gluten-free options?

Yes, please let us know your dietary requirements on your registration form.


Where can we stay?

Check out the tourist board website for a list of accommodation options.

Do I have to carry all my stuff?

In short, no. There will be transition points where you can leave your stuff for the next discipline, but finer details about what to pack will be communicated with teams closer to the event.

Can I take part in fancy dress?

Yes, absolutely! We have an award especially for teams who go the extra mile… the Best Dressed Team Award. Race the Sun is all about having fun and raising money for charity! All we ask is that costumes should not pose a danger or be perceived to be found offensive to other participants or spectators. Action Medical Research reserve the right to remove any participants who are deemed to be dressed indecently or offensively, or wearing costumes which pose a danger to others.

When will I receive my race number?

At registration on the Saturday evening. You will be given race numbers for your bike and your bag. We will give you your tracker and timer just before you cross the start line. Full details of what to expect at registration will be in your Event Guide which will be sent out via closer to the event. 

I have registered but no longer able to take part, what should I do?

Please contact the Events Team if you are no longer able to take part in your event and we can discuss the options with you, which may include transferring to another event or deferring to next year.

Can I transfer my entry to someone else?

Yes. Contact the Events Team for further information.

Can I get a refund, transfer or defer my entry?

Please see our Withdrawals, Refunds, Transfers and Deferrals policy here.

Event day

Can friends and family watch?

Yes, and why not make a weekend of it! Supporters will be able to join you at the event HQ, and then track your progress live online. We’ll share the link with registered participants closer to the event.

Check out the tourist board for the area for inspiration of things to see and do before and after your event.

Does cycling take place on closed roads?

No. Please follow the highway code, and abide by the rules of the road, as well as being considerate to other road users. Take a look at this handy guide to cycling on the roads.


Where can I find photos from the event?

Participant photography is not included in the event, but we do often have photographers roving around the course, as well as members of our staff and marshals capturing pictures and videos throughout the event. All images will be uploaded here after the event.

When will I receive my official time?

All Race the Sun events have live tracking, so you’ll receive your team's time immediately after crossing the line. We will also publish the results on a webpage which will be shared with participants after the event.

When do you need to receive my fundraising by?

Teams need to reach their fundraising target 6 weeks after the event.

Register your interest for 2025

Complete this form and we'll let you know when registration for the 2025 edition of Race the Sun Yr Wyddfa is open!

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