Snowdon Sea to Summit

Starting from Conwy Castle on the North Wales coast, cycle 24 miles through the beautiful landscape of Snowdonia National park to arrive at the base of Snowdon and then hike to the top!

This event has already happened.

About the Snowdon Sea to Summit adventure

Tackle this sea to summit challenge in the heart of Snowdonia and make difference to people’s lives affected by poor mental health. What are you waiting for? Sign up to join #TeamMHUK today.

Public liability insurance and risk assessment planning will be arranged for you through Adventurous Ewe, who organise and carry out the event.

  • Join #TeamMHUK and tackle this class Sea to Summit Challenge in the heart of Snowdonia
  • Starting from the iconic medieval fortification of Conwy Castle on the picturesque North Wales coast
  • Pedal 24 miles through the stunning landscape of Snowdonia National Park to arrive at the base of Snowdon
  • Lace up your hiking boots to conquer the highest peak in Wales, Snowdon at 1085m
  • Experience two routes on Snowdon as your ascent is via the Llanberis Path and descent is via the Pyg Track
  • Take on this epic sea to summit challenge all in support of Mental Health UK

Your itinerary

Arrive early evening in the medieval and walled market town of Conwy, North Wales. Here you will meet your fellow team-mates, receive a full event briefing and overnight on a twin share basis. Dinner is at your own leisure and expense. A pick-up service is available from Llandudno Junction train station on request between 17:00 – 18:00.

Your challenge begins today at the impressively preserved 13th-century estuary fortress of Conwy Castle which is amongst the finest surviving medieval fortifications in Britain. Cycling in teams with your dedicated and certified Cycling Leader, you will following the coast line with views of Anglesey and the Menai Straits and pedal into the heart of Snowdonia. Cycling along cycle paths through the foothills of the Carnedd Mountain Range you will experience the amazing scenery of the Welsh countryside leading you towards the base of Snowdon. Pedalling along the shores of Llyn Padarn you will finish your 24 mile bike route at the National Slate Museum in Llanberis. Here you will have the chance to enjoy a packed lunch with the back drop of the National Park before starting your mountain trek.

Cycle start: Conwy Castle, Conwy

Cycle finish: National Slate Museum, Llanberis

Cycle distance: approx 24 miles

Cycle time: approx 2 hours

Meeting the support vehicle at the National Slate Museum you will swap your bike for your hiking boots to start the ascent of Snowdon. Your ascent of the highest mountain in Wales at 1085m will be via the Llanberis Path. The trek to the summit will take approximately 3 – 3.5 hours and involves 975 metres of ascent. On summiting you will have the chance to enjoy the breath taking views of Snowdonia National Park and the North Wales Coastline. You will then descend via the Pyg Track to arrive at Pen-Y-Pass. This gives you the chance to experience two different routes on this iconic mountain. The descent should take approximately 2.5 – 3 hours. You will be greeted at the finish line with a well-deserved celebratory glass of bubbly before being transferred back to Conwy filled with the pride of completing this challenge in support of Mental Health UK.

Trek start: National Slate Museum via the Llanberis Path

Trek finish: Pen-Y-Pass via the Pyg Track

Trek distance: approx 9 miles

Trek ascent: 975m

Trek time: 5.5 – 6 hours

Essential information

In the lead up to your event

  • Fundraising support from Mental Health UK
  • Training programme
  • Final details digital info pack detailing everything you need to know
  • Discount on personal equipment from ashmei, Cotswold Outdoor and Snow & Rock retail stores, both in shop and online
  • Public liability insurance
  • Risk assessment and emergency management planning

On your event

  • Certified Cycling and Mountain Leaders
  • Support vehicle & driver
  • 1 night’s accommodation on a twin share basis the night prior to your event
  • Event briefing the night prior to your event
  • Breakfast on the morning of your event
  • Packed lunch
  • Checkpoint snacks and water
  • Bike transfers
  • First aid qualified crew and medical supplies
  • Safety and risk management
  • Travel to and from the start and finish of the event
  • Dinner the night prior to the event
  • Clothing and equipment on your kit list
  • Bike and helmet hire. This can organised at £35 per set. Please let us know if you require bike hire at the time of registration
  • Personal spending money

We strongly recommend that you use a road or hybrid bike as opposed to a mountain bike for cycling section of this challenge due to the distance involved. The route is approximately 24 miles along roads and cycle paths.

It’s important that you ride the bike you have been training on so you are used to it. Although training in the gym is useful, there is no substitute for getting out in all weather conditions and getting to know your bike including the range of your gears.

Hire bikes are available at a cost £35.00 which includes a cycling helmet, delivery and collection. To reserve your bike, please let us know at the time of booking or email us at with your height information so we can

Bike repairs during the event

You will need your own puncture repair kit and spare inner tubes for this event. Our support vehicle will carry a limited range of spares along with a full tool kit. However, it is impossible for us to carry spares for every eventuality so it is vital that you check your own bike is in good working order before the event.


It is a condition of taking part in this event that you wear a helmet it at all times whilst cycling, with the straps done up!

The trekking section of the challenge will take place on Snowdon, the highest mountain in England and Wales at 1085 metres. It is a steady climb via the Llanberis Path to the summit which should take approximately 3 hours. The descent is via the Pyg Track allowing you to experience two different routes on Snowdon. Your descent will take approximately 2.5 hours finishing at Pen-Y-Pass from where you will be transferred back to Conwy.

The trek will be led by certified local Mountain Leaders.

The weather in Wales can change very quickly, what can start out as a good day can soon become very poor, particularly in the mountains. It is very important to be well equipped and prepared for all weather conditions.  Please ensure you have all the essential clothing and equipment detailed on your Kit List.

The Leader/s reserves the right to change the itinerary at any time should the conditions require it.  In these circumstances we will make the best alternative arrangements possible that maintain the integrity of the original itinerary.

On arrival in Conwy you will be staying in nearby hotel accommodation on a twin share basis. We can offer single rooms on request, subject to availability at an additional cost. Please note, dinner is not included on your night of arrival giving you the flexibility to eat at your own leisure.

Your Adventurous Ewe Leaders will accompany the Mental Health UK teams at all times on the cycling and trekking legs. Your Leaders are all certified, have first aid qualifications and are locally based. They will carry a medical kit however it is essential that you have your own personal first aid kit as well.

With you every step of the way

Once you’ve registered our friendly fundraising team will be in touch to support you on your fundraising journey. You can expect:

  • Free fundraising toolkit with tips and ideas to push you to the finish line
  • Branded merchandise to help you with your fundraising
  • Mental Health UK t-shirt so you can proudly represent us at your event
  • Regular email updates with all the information you’ll need
  • A friendly team to support you all the way

Top tip for reaching your fundraising target.

Organise a fundraising event at work or with friends as soon as you join #TeamMHUK. Fundraising for #TeamMHUK is a reason to do something fun. It could be a cheese and wine night, a film screening at your house or a BBQ where people make a donation to come along. Run a raffle, or a sweepstake during the event and you will be surprised at just how much you can raise.

Remember that whatever money you raise will really make a difference to our work and people’s lives.

The positive impact the group has had on me is huge. I don’t feel so isolated any more. If the support had not been available I would still be facing depression and loneliness, unable to look after myself and over-thinking things.

Amita, Rethink Mental Illness support group member

Raise money and have fun!

Read what some of our fundraisers have to say.

"I enjoyed seeing my fundraising increase on a weekly basis, the events that I organised pushed me out of my comfort zone, I talked to people about Mental Health in a way that I would never have done otherwise."

Louise Greenwood,
Lloyds Banking Group

"I was totally elated when I crossed the line and so glad I’d given it a go!"

Helen Taylor

"Mental Health UK was a friendly partner to have. I received lots of motivational encouragement via email which maybe doesn’t sound like much but knowing people are rooting for you really helps"

Richard Gray

Contact us

If you have questions about any of our events or fundraising please don’t hesitate to get in touch. Our friendly events team are happy to help!

What will my money go towards?

The money you raise makes a real impact on people’s lives. here are some of the things we spend event fundraising on.

Support groups

Our support groups can be a lifeline for those experiencing mental health problems.


Providing practical advice to help people better understand and manage their mental health.


Creating easy-to-understand educational resources about mental health.