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Get ready to achieve something incredible! Browse over 70 challenges across 4 continents to find your challenge of a lifetime.
Join the specialists in worldwide charity trekking and cycling challenges to provide your supporters with the fundraising adventure of a lifetime!
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This exciting adventure tackles all terrains as we journey literally from Sea to Summit! Starting in Caernarfon on the Menai Strait across from Anglesey, we cycle, trek and kayak in the wildness of Wales and stand on the highest peak in England & Wales - Snowdon (Yr Wyddfa in its native Welsh language) at 1,085m.
You don’t have to be a pro at cycling or kayaking to conquer this fantastic route in the epic Snowdonia landscape - just bring an adventurous spirit and immerse yourself in one of the UK's greatest adventure playgrounds. It's a fantastic weekend away that will leave you amazed at everything you've achieved.
Ever considered a moonlit summit of Snowdon? Check out our Snowdon by Night.
This trip generates around 15 kg of CO₂ per person. Because of our commitment to responsible travel, we offset 100% of these emissions.
Dates & Prices
We meet in the late afternoon at our hotel accommodation in Caernarfon. We'll meet the team and have a detailed trip briefing to prepare us for tomorrow's challenge. Then you're free to arrange your own dinner, either in the hotel or in town, and get to know your fellow adventurers before a good night's sleep sets you up the big challenge day! Night hotel.
Dinner not included.
After an early start and an energising breakfast, we familiarise ourselves with our bikes, and have a final safety briefing before jumping in the saddle to start the challenge. This first section takes us from the picturesque coastline, past historic Caernarfon Castle and through rolling Welsh countryside, passing quaint villages with the peak of Snowdon looming in the distance. It's a stunning route (approx 10 mile / 16km), much of it on traffic-free cycle path, as we wind our way through the back door into Snowdonia National Park.
Arriving at the base of the mountain, we swap bikes for boots, collect our lunch, and begin our ascent of Yr Wyddfa (Snowdon), the highest peak in England & Wales. We ascend via one of the quieter routes, the Snowdon Ranger Path on the west side of the mountain, which carves its way through picturesque farmlands, past beautiful lakes and then follows the ridgeline all the way to the summit (1085m). On reaching the peak, there’s time to soak up the views and take some photos before descending to the northwest, to finish in Llanberis, on the southen banks of Llyn Padarn.
The grand finale of the day will see you paddling a large circuit of this beautiful mountain lake on 2-man sit-on kayaks, before smashing through the finish line and celebrating with a glass of bubbly with your fellow challengers! We then transfer back to our start-point at Caernarfon for onward travel.
Cycle approx 10 miles / 16km (1-1.5 hours) / Trek approx 9 miles (4-6 hours) / Kayak approx 2-2.5 miles (1-2 hours)
Please use the link below to download the full itinerary & challenge details.
Prices may vary depending on date.
03 Jul 2026 - 04 Jul 2026
Snowdon Sea to Summit
Spaces
23 Apr 2027 - 24 Apr 2027
Snowdon Sea to Summit
Spaces
02 Jul 2027 - 03 Jul 2027
Snowdon Sea to Summit
Spaces



Your trip will be led by experienced Discover Adventure leaders and support crew. Our leaders are selected for their knowledge and experience, friendliness and approachability, sense of humour and ability to safely and effectively deal with any situation that arises; they are also trained in first aid. You are in very safe hands with a Discover Adventure leader. The crew will have mobile phones and/or radios where appropriate, medical kit and other safety apparatus where necessary, as well as vehicle support.
Your safety, and that of the rest of the group, is our highest priority. Our trips are designed and planned with safety in mind. Your crew will be equipped with appropriate communication devices (eg phones, radios), medical kit and other safety apparatus appropriate to the destination. Our leaders always have access to our 24-hour emergency UK back-up. They are responsible for safety on the trip, and will make any changes to the itinerary they deem necessary, should local conditions dictate. Pre-trip administration - such as medical questionnaires and travel insurance as appropriate - is all done with your safety in mind.
Accommodation is usually in well-located, comfortable 2-3* hotel(s); standards are generally very good though there may be some variation.
Our trips are sold on a shared accommodation basis, usually twin-share. Occasionally we may use hostel-style accommodation.
You can tell us if you are travelling with someone else on the trip when you book or within your passenger portal, and we will do all we can to accommodate this request. It is important that both people complete the room share request on their bookings. For customers booking and travelling together, including same-sex couples, a double bed can be requested if available.
If you're not familiar with anyone in the group, rest assured, we always pair you with someone of the same gender (as per the information you provided when booking, or passport markers), and a similar age where possible. We're actively working to improve our system's gender restrictions to be more inclusive, and we've recently made significant strides in this area. If you identify differently from the gender marker on your passport and would like to discuss this before booking, please feel free to reach out to us.
In most standard hotels, we can usually offer a limited number of single rooms. This is upon request, on a first-come, first-served basis, and additional charges apply. In more communal accommodation, single rooms are rarely an option.
We do not charge a single supplement if you are a solo traveller in a shared room.
The food provided is plentiful and will give you plenty of energy. Where lunch is included, it may be a buffet-style lunch-stop, or a packed lunch. Dinners and breakfasts are generally eaten at our accommodation. Being vegetarian or having other dietary requirements is not usually a problem provided you let us know well in advance. If you know there are plenty of foods you cannot eat you may wish to bring extra snacks from home so you can top up your energy supply.
Your main luggage will remain at our accommodation (camp, hostel or hotel as appropriate) and you will not have access to it until the end of each day. You should carry a small daypack for items needed during the day.
All our trips are designed to provide a challenge. Trips are graded Yellow, Orange or Red, in increasing level of challenge. This trip lies within the YELLOW range.
The grade is determined by factors such as terrain, distance, climate, altitude, etc. Each colour grade has a spectrum which reflects the difficulty of these factors. Trip duration, accommodation and living conditions are also taken into account. Some sections will feel more challenging than others, but the grade reflects the overall trip. Unusual weather conditions can also have a significant impact.
The Accommodation icon indicates the living conditions while trekking/cycling. While there are usually several factors that present a challenge, the Challenge icon indicates the trip's most challenging element, for most people.
This is designed to be a challenge, and it is vital that you train sufficiently for it. We will supply you with a thorough training guide once you have registered. Training is all part of the preparation: inadequate training will impact on your enjoyment of the trip, and your chances of completing it. We expect all participants to train hard in advance, but we respect everyone’s limits and do not expect everyone to maintain the same pace. If you have concerns about your fitness or if you have reduced mobility please do contact us for a confidential chat about whether this challenge is appropriate for you.
We plan our trips around the optimal weather conditions, but could still be exposed to bad weather at any time. It is vital you are prepared for all conditions. We provide you with a detailed packing kit-list on registration, with plenty of information, and we are always available if you need advice.
Travel insurance for UK weekends and one-day events is not compulsory but you might like to consider taking out cover in case of cancellation or loss of belongings.
Once your travel insurance is arranged, just remember to let us know the policy number and 24-hr medical emergency phone number provided by your insurers.
In the unfortunate circumstance that you need to cancel your booking, we would ask that you notify us in writing either by email or post. Your cancellation will be considered effective from the date the notice is received. Registration, administration and amendment fees are non refundable and, depending on your payment option and how close it is to your challenge departure date, you may be liable for a cancellation charge.
Full details of all cancellation charges may be found in the Terms and Conditions of booking.
Your booking is part of a group challenge, and the tour costs and fundraising targets listed on our website are based on a minimum number of participants which is shown on the challenge Our typical groups run with approximately 15-25 participants; however you may find your group is smaller or larger than this.
We will confirm at least 12 weeks prior to departure that your challenge is guaranteed to run. Occasionally it may be possible to still run the challenge with less than the minimum numbers, subject to a small group supplement. If we think a small group supplement may be necessary, we will discuss this with you as soon as possible, usually 5 months before your departure date.
Minimum numbers and groups sizes may vary on Bespoke Charity challenges. If you are booked onto a bespoke challenge please contact your charity for full details.
We have a Passenger Portal which will give you more details of the challenge itself. It also enables you to see any outstanding information we need, the countdown to your challenge departure, see your outstanding balance, make payments and update your contact details. You can access this via the following link - Passenger Portal Log in.
We are committed to an ethos of responsible travel here at Discover Adventure; this means sustainable tourism, ethical travel, community engagement, cultural respect, wildlife protection, fair trade practices, carbon footprint reduction and more. We have been on a 30-year journey with this as one of our core principles, and it continues to evolve; you can keep up to date with what we are up to and what all of this translates into on a DA trip here.
From 2024, we will offset our entire carbon footprint, including the flights, via a carbon credit scheme (see more here). We must do all we can to be on the right side of history. Our offsetting brings peace of mind to many of our customers, but we think it is essential that our customers are aware of their impact; with this in mind, we encourage our participants to donate to World Land Trust’s Buy an Acre project when they book an adventure.
Over the years, people with wide-ranging abilities have achieved personal goals on our adventures that they may have previously assumed were out of their reach.
We must be aware of any circumstances that may affect your ability to take on the trip, whether you have concerns about fitness, health conditions or disability. This way, we can ensure we are providing the best advice and support. You will be asked to sign a medical declaration upon booking.
Whilst we will always try our best for you, by the nature of adventure, not all of our challenges are accessible, and we are not an operator specifically offering adapted adventures. If you would like to have a confidential chat with the team about anything before booking, please give us a call or an email; we will be more than happy to help.
Catia - July 2023
I enjoyed every minute! The location was beautiful, and the challenge was great. Everyone at Discover Adventure was very helpful, reassuring and accommodating of all levels of fitness.
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