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Llyn Mawr – Boardwalk to Llyn Mawr loop from Caersws

Llyn Mawr – Boardwalk to Llyn Mawr loop from Caersws

Moderate

Llyn Mawr – Boardwalk to Llyn Mawr loop from Caersws

01:13

15.4km

340m

Gravel riding

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Last updated: September 17, 2026

Waypoints

A

Start point

1

1.04 km

Llyn Mawr

Highlight • Natural Monument

The centerpiece of the Llyn Mawr Nature Reserve is the upland lake known as Llyn Mawr, which means 'big lake' in Welsh. It supports a diverse array of aquatic plants including Bogbean, Yellow Water-lily and the rare Quillwort, found only in Montgomeryshire.

Llyn Mawr is one of three lakes within a Site of Special Scientific Interest, situated high on the moorland plateau above the Carno Valley. At this spot you'll find a small boardwalk where you can enjoy close-up views of the lake.

Tip by

2

1.05 km

Boardwalk to Llyn Mawr

Highlight • Trail

3

1.13 km

Llyn Mawr

Highlight • Lake

B

15.4 km

End point

Way Types & Surfaces

Way Types

9.45 km

3.78 km

2.03 km

160 m

Surfaces

5.80 km

4.94 km

4.51 km

160 m

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Elevation

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

Highest point (440 m)

Lowest point (190 m)

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Weather

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Monday 5 October

18°C

11°C

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