Looking for the best hikes and walks around Llyn Cwm Bychan? Then browse our collection of routes around this beautiful lake in Gwynedd below. We present you with hiking trails …

Last updated: September 24, 2025

hikers

1. Rhinog Fach to Y Lethr — Parc Cenedlaethol Eryri / Snowdonia National Park

17.9km

07:41

1,460m

Expert hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Expert

4.5

(6)

hikers

2. Rhinog Fawr Summit Cairn – Llyn Du (Rhinog Fawr) loop from Harlech

9.02km

03:19

590m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

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5.0

(2)

hikers

3. The Roman Steps – Pistyll Gwyn Waterfall loop from Harlech

13.2km

04:17

590m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

2.0

(1)

hikers

4. The Roman Steps – Bwlch Drws Ardudwy loop from Harlech

14.1km

04:42

670m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

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5. The Roman Steps – The Roman Steps loop from Harlech

4.06km

01:27

250m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

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The best walks and hikes around Llyn Cwm Bychan

1. Rhinog Fach to Y Lethr — Parc Cenedlaethol Eryri / Snowdonia National Park

2. Rhinog Fawr Summit Cairn – Llyn Du (Rhinog Fawr) loop from Harlech

3. The Roman Steps – Pistyll Gwyn Waterfall loop from Harlech

4. The Roman Steps – Bwlch Drws Ardudwy loop from Harlech

5. The Roman Steps – The Roman Steps loop from Harlech

Most popular routes around Llyn Cwm Bychan

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