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Guernsey

Alderney Full Day Cycle

Moderate

22

riders

Alderney Full Day Cycle

01:11

15.5km

190m

Cycling

Alderney, the third largest of the Channel Islands, is a wonderfully peaceful destination, where life moves at a gentler pace. This circular tour of the island embodies that relaxed spirit, meandering around the island showcasing its history, rich cultural heritage, welcoming sandy beaches, dramatic coastal scenery and inviting cafes.

Beginning…

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Last updated: August 19, 2026

Waypoints

A

Start point

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1

4.27 km

Alderney Lighthouse

Highlight • Monument

Alderney Lighthouse, also known as Mannez Lighthouse, is a 32-metre (105-ft) stone tower, built in 1912 by Trinity House. It guides ships away from the treacherous waters of the Alderney …

Tip by

2

10.1 km

Fort Tourgis

Highlight • Castle

Fort Tourgis is a 1850s Victorian citadel, originally built to house 346 men and mount 33 guns to protect the Alderney Breakwater.

It was later transformed into Stutzpunkt Türkenburg (Strongpoint …

Tip by

3

11.1 km

Clonque Causeway

Highlight • Bridge

Clonque Causeway is a spectacular 400-metre (1,312-ft) tidal causeway which connects the main island of Alderney to Fort Clonque, a 19th-century sea fort.

The causeway and drawbridge are submerged at high tide, making careful timing essential for access.

Tip by

4

12.1 km

Gannet Rocks

Highlight • Natural Monument

Gannet Rocks, locally known as Les Etacs and Ortac, are two rugged, isolated sea stacks. Together, they host a globally significant breeding colony of Northern Gannets, supporting approximately 8,700 pairs—which equates to over 1% of the entire global population.

Tip by

B

15.5 km

End point

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Way Types & Surfaces

Way Types

9.36 km

3.80 km

1.36 km

947 m

Surfaces

9.68 km

4.75 km

697 m

231 m

< 100 m

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Elevation

Elevation

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

Highest point (80 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Friday 4 September

20°C

16°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

Comments

July 23, 2026

Alderney, the third largest of the Channel Islands, is a wonderfully peaceful destination, where life moves at a gentler pace. This circular tour of the island embodies that relaxed spirit, meandering around the island showcasing its history, rich cultural heritage, welcoming sandy beaches, dramatic

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