Mountain biking around Llanystumdwy is a great to experience more of the landscape. But it’s often tough to know where to start. To help you find the best mtb routes around Llanystumdwy, here are the best rides!

Last updated: October 12, 2025

4.3

(3)

riders

1. Lleyn Peninsula loop of Yr Eifl

22.2km

01:54

490m

Intermediate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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Intermediate

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2. Yr Eifl Memorial Stones loop from Pwllheli

30.4km

02:16

590m

Intermediate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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Intermediate

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3. Mountainbike loop from Clynnog Fawr

37.3km

02:17

420m

Intermediate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Intermediate

4.0

(2)

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4. Gorsedd Stone Circle – View of Porthmadog loop from Porthmadog

20.4km

01:23

290m

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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Easy

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5. Caernarfon Castle – Criccieth Promenade loop from Criccieth

63.7km

03:37

510m

Intermediate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Intermediate

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

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The best MTB trails around Llanystumdwy

1. Lleyn Peninsula loop of Yr Eifl

2. Yr Eifl Memorial Stones loop from Pwllheli

3. Mountainbike loop from Clynnog Fawr

4. Gorsedd Stone Circle – View of Porthmadog loop from Porthmadog

5. Caernarfon Castle – Criccieth Promenade loop from Criccieth

Most popular routes around Llanystumdwy

Most popular attractions around Llanystumdwy

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