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Caernarfon Castle – Nant Peris Valley loop from Caernarfon

Caernarfon Castle – Nant Peris Valley loop from Caernarfon

Hard

riders

Caernarfon Castle – Nant Peris Valley loop from Caernarfon

03:00

58.3km

900m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is right next to a parking lot.

Last updated: February 27, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 22.8 km for 206 m

Waypoints

Start point

Parking

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268 m

Caernarfon Castle

Highlight • Monument

Royal fortress-palace built on legends and bitter medieval conflict Caernarfon Castle is recognised around the world as one of the greatest buildings of the middle ages

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13.7 km

View of Llyn Padarn from Pont Pen-y-Llyn

Highlight • Viewpoint

On a clear day, from this end of Llyn Padarn you’ll get an enticing view of Snowdon and other peaks.
Its absolutely stunning and well worth the ride.

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18.2 km

Nant Peris valley is a picturesque and enchanting valley located in Snowdonia National Park, Wales. Surrounded by towering mountains and lush greenery, it offers breathtaking natural beauty and a tranquil …

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26.1 km

Mallory's Café

Highlight • Cafe

Iconic Pen y Pass is the access point to both the Miners’ and Pyg Track trailheads leading to Yr Wyddfa’s summit. At the pass are toilets, a café, and a …

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29.4 km

View of Snowdon

Highlight • Viewpoint

32.0 km

Pen-y-Pass Ascent from Nant Gwynant

Highlight (Segment) • Viewpoint

Voted one of the ten most iconic climbs in Wales, you have to conquer this climb. It climbs gently enough from Nant Gwynant to the summit of Pen y Pass for approximately 6km.

Translated by Google •

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37.8 km

Llanberis Pass – Pen-y-Pass Climb

Highlight (Segment) • Climb

Awesome mountain road from Nant Peris in the west to the top of Pen-y-pass in the east. It's a long climb up from Nant Peris or an exciting descent in …

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46.6 km

Pantri Café Llanberis

Highlight • Cafe

maps.google.com/?cid=16541924643872033543

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58.3 km

End point

Parking

Way Types & Surfaces

Way Types

39.4 km

11.7 km

5.90 km

774 m

406 m

100 m

< 100 m

Surfaces

53.3 km

4.16 km

406 m

366 m

153 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (360 m)

Lowest point (0 m)

Weather

Wednesday 6 May

14°C

4°C

25 %

Additional weather tips

Max wind speed: 22.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Caernarfon Castle – Nant Peris Valley loop from Caernarfon

Caernarfon Castle

View of Llyn Padarn from Pont Pen-y-Llyn

Nant Peris Valley

Mallory's Café

View of Snowdon

Pen-y-Pass Ascent from Nant Gwynant

Llanberis Pass – Pen-y-Pass Climb

Pantri Café Llanberis

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