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Bike touring routes & trails

Waterfalls on the River Ogwen – Marchlyn Bach Reservoir loop from Bethesda

Bike touring routes & trails

Waterfalls on the River Ogwen – Marchlyn Bach Reservoir loop from Bethesda

Hard

9

riders

Waterfalls on the River Ogwen – Marchlyn Bach Reservoir loop from Bethesda

02:03

26.5km

570m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 21, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

SoDdGA Eryri

Waypoints

A

Start point

Bus stop

1

1.82 km

Waterfalls on the River Ogwen

Highlight • Waterfall

There are several waterfalls along River Ogwen and this is the perfect spot to sit on the serene riverbank and see the water breaking over large slabs. This river travels …

Tip by

2

10.7 km

Marchlyn Bach Reservoir

Highlight • Lake

Marchlyn Bach Reservoir
The Marchlyn Bach dam and reservoir is not part of the Dinorwig HEP scheme. It is a reservoir owned by Dwr Cymru (Welsh Water).
The road in …

Tip by

3

12.6 km

View of Snowdon

Highlight • Summit

super ride down through the slate quarry but watch out for punctures on the sharp slate

Tip by

20.2 km

Parc y Bryniau

Forest

5

22.8 km

Old Railway Tunnel

Highlight • Structure

The road down Steephill is closed at the bottom and there is no way through. Only go down if you want a very challenging climb back up!

Tip by

23.6 km

Parc Coed Moch

Forest

B

26.5 km

End point

Bus stop

Way Types & Surfaces

Way Types

19.4 km

3.06 km

2.43 km

1.49 km

107 m

Surfaces

17.1 km

4.54 km

2.68 km

2.13 km

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Elevation

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

Highest point (560 m)

Lowest point (100 m)

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Weather

Powered by Foreca

Sunday 11 October

17°C

12°C

33 %

Additional weather tips

Max wind speed: 29.0 km/h

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