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Maentwrog Dam – View of Llyn Trawsfynydd loop from Gellilydan

Routes

Hiking trails & Routes

Maentwrog Dam – View of Llyn Trawsfynydd loop from Gellilydan

Moderate

4.2

(5)

hikers

Maentwrog Dam – View of Llyn Trawsfynydd loop from Gellilydan

02:50

9.40km

300m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: April 16, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Ceunant Llennyrch National Nature Reserve

Parc Cenedlaethol Eryri

Waypoints

Start point

Parking

Get Directions

17 m

Maentwrog Dam

Highlight • Lake

Maentwrog Dam was built in the 1920s to provide a source of hydroelectric power for the Maentwrog power station. Later in 1965 the lake also became a source of cooling water for the Trawsyfynydd nuclear power station.

Tip by

1.91 km

View of Llyn Trawsfynydd

Highlight • Lake

Surprisingly steep uphill to here, but good views and the high point of the circuit around the Llyn.

Tip by

2.12 km

Picnic Area with View of Llyn Trawsfynydd

Highlight • Viewpoint

This picnic spot provides lovely views across Llyn Trawsfynydd and the surrounding mountains. The lake is artificial, created in the 1920s to supply the Maentwrog power station, though it later …

Tip by

2.14 km

Stone Benches With View of Llyn Tegid

Highlight • Viewpoint

Since there is no resting place at the highest point of the lake circuit, you are all the happier a little below.

Translated by Google •

Tip by

3.66 km

View of Parc Cenedlaethol Eryri

Highlight • Natural Monument

9.40 km

End point

Parking

Way Types & Surfaces

Way Types

4.74 km

3.44 km

1.03 km

194 m

Surfaces

4.31 km

2.27 km

2.10 km

553 m

165 m

Elevation

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

Highest point (390 m)

Lowest point (190 m)

Weather

Tuesday 30 June

17°C

13°C

11 %

Additional weather tips

Max wind speed: 26.0 km/h

to get more detailed weather forecasts along your route

Comments

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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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Maentwrog Dam – View of Llyn Trawsfynydd loop from Gellilydan

Maentwrog Dam

View of Llyn Trawsfynydd

Picnic Area with View of Llyn Trawsfynydd

Stone Benches With View of Llyn Tegid

View of Parc Cenedlaethol Eryri

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