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Colliford Lake – Siblyback Dam loop from Warleggan

Routes

Bike touring routes & trails

Colliford Lake – Siblyback Dam loop from Warleggan

Hard

4.7

(20)

riders

Colliford Lake – Siblyback Dam loop from Warleggan

03:39

56.0km

590m

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: July 30, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Cornwall National Landscape

Waypoints

Start point

Bus stop

Get Directions

6.66 km

Colliford Lake

Highlight • Viewpoint

Colliford is the largest lake in Cornwall and the road passing by it provides superb views.

There are plentiful picnic spots alongside the lake, but watch out for ponies roaming free who might steal a sandwich.

Watersports aren't allowed here which makes for a peaceful area, but you may spot a fly fisher seeking out an elusive brown trout.

Tip by

7.23 km

View of Colliford Lake

Highlight • Viewpoint

Can be windy

Tip by

10.2 km

View of Brown Willy from Colliford Lake

Highlight • Viewpoint

Brown Willy (Bronn Wennili) meaning 'Hill of Swallows', the highest hill in Cornwall! Enjoy great views of it from across the water here at Colliford Lake.

Tip by

16.4 km

Fowey River Bridge

Highlight • Bridge

23.6 km

King Doniert's Stone

Highlight • Monument

King Doniert's Stone - a decorated granite base for a Celtic Memorial cross that dates to the late 9th Century. It is thought to have been built to commemorate Doniert, the last recorded king of Cornwall.

Tip by

26.5 km

Siblyback Dam

Highlight • Lake

The dam was built in 1968 to create this reservoir which provides drinking water and tops up the water levels of the River Fowey during the dry months. Once a small tributary of the River Fowey, the lake now holds 3 billion litres of water.

Tip by

27.2 km

Siblyback Lake

Lake

28.6 km

Sibleyback Reservoir Circular Trail

Highlight • Forest

Enjoy this traffic-free gravel track around Sibleyback Reservoir that's designed with pedestrians and cyclists in mind.

The 3 mile (5 km) trail is also suitable for adaptive cycles, wheelchairs and pushchairs, and takes in both the Sibleyback Dam and idyllic woodlands.

Wildlife lovers will be thrilled, as there's often plenty to see on and near the water, as well as a bird hide to hunker down in to watch.

Tip by

29.9 km

Siblyback Lake

Highlight • Lake

56.0 km

End point

Bus stop

Way Types & Surfaces

Way Types

52.4 km

3.12 km

508 m

< 100 m

Surfaces

35.7 km

16.6 km

3.18 km

583 m

Elevation

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

Weather

Sunday 23 August

22°C

12°C

0 %

Additional weather tips

Max wind speed: 28.0 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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Colliford Lake – Siblyback Dam loop from Warleggan

Colliford Lake

View of Colliford Lake

View of Brown Willy from Colliford Lake

Fowey River Bridge

King Doniert's Stone

Siblyback Dam

Sibleyback Reservoir Circular Trail

Siblyback Lake

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