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Guernsey

Fort Doyle – Grande Havre Bay loop from St Sampson

Routes

Running trails & routes

Guernsey

Fort Doyle – Grande Havre Bay loop from St Sampson

Hard

runners

Fort Doyle – Grande Havre Bay loop from St Sampson

02:14

20.8km

110m

Running

Hard run. 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 16, 2026

Waypoints

Start point

Bus stop

Get Directions

1.34 km

Baie de Port Grat

Beach

1.99 km

Rousse Tower

Highlight • Monument

Restored and accessible loop-holed tower built in the 19th Century to defend the island against the threat of a French invasion. This tower has been wonderfully maintained and is complete with replica cannons.

Tip by

2.58 km

Rousse Bay

Highlight • Beach

8.08 km

Pembroke Bay

Highlight • Beach

Together with neighbouring L'Ancresse Bay, it forms the longest uninterrupted stretch of sandy beach in Guernsey.

The beach's clear and shallow water, along with its gently sloping shoreline makes it ideal for swimming and paddling,

Tip by

8.57 km

L'Ancresse Bay

Highlight • Beach

There is a really good cafe/restaurant at L’Ancresse Bay - a great place to stop, right overlooking the beach

Tip by

9.96 km

Fontenelle Bay

Beach

10.5 km

Fort Doyle

Highlight • Historical Site

19th-century fort built as part of the network to protect the island against invasion by the French. Later used by the Germans during the Second World War who installed coastal …

Tip by

17.3 km

Vale Church and Cemetery

Highlight • Religious Site

A small accessible cemetery with a small church

Translated by Google •

Tip by

17.4 km

Grande Havre Bay

Highlight • Beach

Grande Havre Bay is a beautiful bay with several beaches. At their ends are the loop-holed towers 11 ("Rousse Tower") and 10, which were supposed to protect the bay from a French invasion.

Translated by Google •

Tip by

17.6 km

Grande Havre Bay

Highlight • Beach

On the bay there are various beaches, kiosks, paths to explore the Mortello Towers and countless picnic opportunities. It is best to park your bike and continue on foot!

Translated by Google •

Tip by

20.8 km

End point

Bus stop

Way Types & Surfaces

Way Types

12.8 km

2.95 km

2.70 km

2.22 km

117 m

< 100 m

Surfaces

6.59 km

6.21 km

4.00 km

2.10 km

1.88 km

Elevation

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

Weather

Monday 17 August

23°C

17°C

16 %

Additional weather tips

Max wind speed: 33.0 km/h

to get more detailed weather forecasts along your route

Comments

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Fort Doyle – Grande Havre Bay loop from St Sampson

02:14h

20.8km

110m

Fort Doyle – Grande Havre Bay loop from St Sampson

Rousse Tower

Rousse Bay

Pembroke Bay

L'Ancresse Bay

Fort Doyle

Vale Church and Cemetery

Grande Havre Bay

Grande Havre Bay

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