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Bike touring routes & trails

Mawddach Estuary Trail – Penmaenpool Toll Bridge loop from Tonfanau

Bike touring routes & trails

Mawddach Estuary Trail – Penmaenpool Toll Bridge loop from Tonfanau

Hard

4.3

(3)

73

riders

Mawddach Estuary Trail – Penmaenpool Toll Bridge loop from Tonfanau

04:01

55.6km

740m

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: February 5, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Train Station

Get Directions

1

5.53 km

View of the A493 Coastal Road, Eryri National Park

Highlight • Viewpoint

Stunningly beautiful coast road. Great views of the Snowdonian mountains in the distance. Not particularly hilly either for a coastal road.

Tip by

2

15.7 km

Barmouth Bridge (Mawddach Railway Viaduct)

Highlight • Monument

Grade 2 listed single track wooden railway viaduct with wood cycle path next to the train line. Fantastic views across the Afon Mawddach Estuary.

Tip by

3

18.8 km

Mawddach Estuary Trail

Highlight (Segment) • Viewpoint

Flat and easy largely traffic-free gravel trail winding towards the sea with beautiful views. We did it there and back with lunch in Barmouth. Lots of people cycling with kids and dogs – definitely family friendly.

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4

25.9 km

The George III Pub and Mawddach Estuary View

Highlight • Bridge

Lovely spot to stop for a pint right on the edge of the Mawddach with a beautiful view of the estuary and the old toll bridge.

Tip by

5

26.0 km

Penmaenpool Toll Bridge

Highlight • Bridge

Penmaenpool bridge is a grade 2 listed wooden toll bridge. It was built in 1879 to replace a ferry crossing. It's open between 08.30 & 18.30 Monday to Saturday. Sunday, …

Tip by

6

33.1 km

Lake Gwernan

Highlight • Viewpoint

Sitting under the great hulk of Cadair Idris, Lake Gwernan is an eye-catching feature on Route 82 out of Dolgellau. The lake is 12 acres (5 ha) with gorgeous woodlands …

Tip by

7

41.2 km

View of Barmouth and the Mawddach Estuary

Highlight • Trail

The path may be tough going but the views from here over to Barmouth and the Mawddach estuary are simply beautiful whichever way you are going.

Tip by

8

46.9 km

View of Cregennan Lakes and Cadair Idris

Highlight • Viewpoint

The key point to know about this NCR is that as you complete the climb the road falls apart and it goes from gravel to rocks near the top. Several …

Tip by

B

55.6 km

End point

Train Station

Way Types & Surfaces

Way Types

21.5 km

19.0 km

10.9 km

3.58 km

691 m

Surfaces

19.4 km

16.1 km

11.9 km

7.80 km

464 m

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Elevation

Elevation

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Highest point (400 m)

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Weather

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Wednesday 6 May

14°C

9°C

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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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