It doesn’t matter whether you're looking for a gentle swim or something more wild and adventurous, Eryri has loads to offer.

Mountain swimming is not without its risks. Proper preparation, safety awareness, and respect for the environment and weather are essential.

This (quick) guide dives into some of the best locations, the benefits of mountain swimming, safety tips, and the things you need to know before taking the plunge.

Where to Have Mountain Swimming Adventures in North Wales

North Wales is home to some of the most scenic wild swimming spots in the UK.

Our favourite way to find swim spots is to use Ordnance Survey maps in combination with Google Maps to find likely locations - and then get out there and explore.

Social media will give you the highlights BUT, if a swim spot pops up often in your feed it’s loads more likely that there will be other people there.

We like wild swimming where other people are not.

That said; here are some great locations to try wild swimming in the mountains for the first time.

• Llyn Idwal – A popular, peaceful, spot surrounded by rugged mountain scenery in the Glyderau mountains.

• Llyn Llydaw – Nestled on the slopes of Yr Wyddfa (Snowdon), offering breathtaking views and vivid, clear water.

• Llyn Padarn – A large lake near Llanberis, surrounded by mountains, perfect for a cold, mountainous dip but with coffee and cake near at hand.

• Llyn Cau – A beautiful glacial lake in the crater of Cadair Idris, 350 meters above the car park, with another 400 meters of mountain towering above you.

• Llyn Dinas – A picturesque lake near Beddgelert in the shadow of Yr Yr Wyddfa, that has very easy access that’s perfect for beginners.

The Benefits of Mountain Swimming Adventures

Mountain swimming is brilliant fun and it’s great for your body and mind.

Physical Health Benefits

• Reduces muscle soreness and inflammation, aiding recovery.

• Boosts circulation and metabolism, potentially aiding weight loss.

• Strengthens the immune system over time.

Mental Health Benefits

• Helps manage stress, anxiety, and depression.

• Releases endorphins, boosting mood and energy levels.

• Encourages mindfulness and connection with nature.

How to Stay Safe During Mountain Swimming Adventures

Safety comes first when swimming in mountain lakes. Don’t take unnecessary risks. Don’t put pressure on Mountain Rescue teams - they’re busy enough.

Top tips to stay safe:

• Don’t swim alone - have a buddy with you.

• Check the weather and water conditions - sudden changes can make swimming loads more dangerous.

• Enter the water gradually - cold water shock is a real risk, give your body time to adjust.

• Know your limits - stick close to the edge at first, don’t push yourself too far when you're starting out.

• Respect nature - leave no trace and be considerate of wildlife and the environment.

What Kit Do You Need to Go Swimming in the Mountains

Having the right gear can make your swim safer and more comfortable:

• Wetsuit or swimsuit? - a wetsuit helps in colder water, in summer, a swimsuit might be enough.

• Tow float and whistle - really helps with visibility and safety.

• Water shoes - protect your feet, walking back from a mountain lake with cuts and bruises is not nice.

• Warm layers or a dryrobe - essential for warming up post-swim.

• A dry bag - keeps valuables and your phone dry and to hand while you swim.

Things to Consider Before Mountain Swimming Adventures

Before heading out for a mountain swim, take a moment to consider:

• Water quality - pollution, blue-green algae, or farm runoff.

• Legal access - It’ll probably be fine but do some research before you go.

• Be prepared - Know what to do if things go wrong. Have extra warm layers and snacks with you.

• Weather conditions - Mountain weather can change fast, pack accordingly.

• Fitness level - Be honest with yourself about your swimming ability and make plans accordingly.

Top Tips for Mountain Swimming Adventures in North Wales

• Acclimatise to the water slowly to prevent cold water shock.

• Have decent mountain walking equipment for the walk there and back.

• Pack a hot drink and snacks every time

• Respect the environment by not leaving litter, playing music or disturbing wildlife.

• Join a local wild swimming community for advice, shared adventures, and support.

FAQs About Mountain Swim Adventures in North Wales

Is mountain swimming safe in North Wales?
Yes, if you take the right precautions, such as checking conditions, swimming with a buddy, and wearing appropriate gear.

Do I need a wetsuit for mountain swimming?
Not always. In summer, a regular swimsuit might be fine, but in colder months, a wetsuit can help keep you warm.

Are there any restrictions on wild swimming in North Wales?
A very few have restrictions, so it’s best to google access rights before you go. If lots of people swim at the location - don’t worry about restrictions too much.

How do I avoid cold water shock?
Enter the water gradually and avoid jumping straight in, especially in hot weather when the temperature contrast can be extreme.

What should I do if I see someone struggling in the water?
Call 999 immediately and ask for the Mountain Rescue. Throw something that floats to them, do NOT put yourself in danger by trying to rescue them.

Mountain swimming in North Wales is an incredible adventure, with the right preparation, gear, and respect for other people, the landscape and the environment, it’s one of the best ways to enjoy the stunning landscapes of this beautiful region.

Wild Wales helps people have brilliant adventures in North Wales.