Pen yr Ole Wen Infinity Pool Wild Swim Walk
🥾 North Wales

Pen yr Ole Wen Infinity Pool Wild Swim Walk

🧡 Char & Ads 📅 June 11, 2026
📍
4.4 Miles
Distance
⏱️
2-3 Hours
Duration
💪
Moderate
Difficulty
⛰️
921ft
Elevation
🅿️
Pay & Display
Parking
🍂
May - September
Best Season
🐕
No
Dogs
🌿
Roadside, mountain paths, stream crossings
Terrain
🚻
At the start
Toilets
This walk has its own stampJoin free, walk it, tap “Mark as done”, and it goes in your passport.

🗺️ The route

Free to view
📍 Start: LL57 3LZ
Loading route map…
See what's nearby on our walk map1 more walk within 5 miles
Walk forecast At the start, next 7 days
⛅ Loading the forecast…

If you want a wild swim with a view, then they don’t get much better than the this spot on Pen Yr Ole Wen overlooking the mighty Tryfan in the Ogwen Valley. With a relatively short route up but with BIG views, its no surprise this is a go to of ours when were in the Ogwen Valley.

What to expect

You’ll leave the Ogwen valley and head up the quieter side of the mountains past Llyn Ogwen before you start the climb up Pen Yr Ole Wen. The path is quite tricky to follow in places and not always obvious but as long as you keep the river in your sight you can’t go too far wrong.

There may be times you have to cross calmer sections of the falls on stepping stones, so its not the easiest walk but the views back down the valley towards the lake and Tryfan are breathtaking.

View over the river with mountains in the background and trees to each side
View from Pen Yr Ole wen towards Y Garn across Llyn Ogwen

Getting there & parking

Llyn Ogwen Cottage main car park – LL57 3LZ. This one is a pay & display, there are also lots of FREE lay-bys further along the road, but these do fill up quickly. Use the same postcode and just carry on along the A5.

Best time to visit Best months: May to September
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Now Nov
Dec
Best
Good
Quieter / wet underfoot

Good to know

🚻Are there toilets?

Yes, at the start of the walk.

🐕Can I bring the dog?

No, dogs aren't allowed on this walk.

🥾What underfoot?

Expect roadside, mountain paths, stream crossings underfoot. What we wear for it ↓

The route

  • 4.4 Miles
  • 2-3 Hours
  • Moderate

This is an out and back route, starting at Llyn Ogwen before crossing a little stream bridge to walk past the lake and up Pen Yr Ole Wen. Shortly after, you’ll cross a stile and follow the waterfall up, once you reach a second stile, look out for the mountain pool on your right, its not always obvious from the path

Step-by-step

  1. From the car park, head right along the A5.
  2. Once you get past the lake look out for a footpath on your left.
  3. Follow this past the cottage, through the gate and towards Pen Yr Ole Wen.
  4. You'll see a stile over a wall, take this.
  5. Follow the waterfall up, you may have to cross the falls at certain points, the path isn't obvious here so it can be tricky.
  6. Once you reach another stone wall with a stile, you're almost there.
  7. Get over the wall and look out for the mountain pool on your right.
  8. Head back the same way you come after a swim.

Your walk

Heading out? Take this walk with you

Free members get the tools to follow it on the day, so you're not relying on phone signal.

  • GPX downloadFor your phone, watch or Komoot.
  • Printable route cardOne page with the route, pit stops and an emergency line.
  • Track it & get the stampTick it off and add the miles to your log.
Rated by walkers
5 (1)
Log in to rate
Trail reports
No reports yet.
Log in to add yours
Tryfan from Pen Yr Ole Wen
Tryfan in the background shot from infinity pool on Pen Yr Ole Wen

Tips & what to bring

Good walking boots, always. Even in summer the path can be wet in places and you need solid footwear with good grip to cross the falls as the rocks here can be slippy. Be sure to also pack swimwear, a towel, swimming shoes, as well as extra layers and a hot drink for after your swim.

What we'd pack for this walk

See how we wear it →

Kit we actually use, picked for this route.

Also pack:🧣 Extra layers☕ Hot drink🩱 Swimwear
Some links earn us a small commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases.Full kit list on our Gear page →

Eat & drink nearby

Betws Y Coed. Llanberis and Caernarfon are all within a 30 minute drive for post swim refreshments. There is also a little cafe at the visitor centre at the main car park in the Ogwen Valley.

Make a weekend of it

Tell us how many nights and how hard you want it. We'll add food, somewhere to stay and a walk for each extra day, all places we've been ourselves.

Make a weekend of it →

Places to stay nearby

Elephant View, Eryri National Park Glamping
Elephant View, a luxury shepherd's hut for 4 near Eryri (Snowdonia), with a wood fired hot tub and pizza oven.
8 miles away View →
See all places to stay on the map →

More walks near here

See all walks →
📬

Never Miss a Walk

New routes, hidden gems and honest reviews, straight to your inbox.

🥾 Join free to save this walk
Surprise Me Places to Stay Plan a Weekend Gear & Kit Join free Login
Walks Join free Plan weekend