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Jersey

St. Ouen's Bay – Grosnez Castle Ruins loop from Jersey Airport

Routes

Hiking trails & Routes

Jersey

St. Ouen's Bay – Grosnez Castle Ruins loop from Jersey Airport

Hard

4.9

(18)

hikers

St. Ouen's Bay – Grosnez Castle Ruins loop from Jersey Airport

07:17

27.1km

330m

Hiking

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Last updated: June 17, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Jersey National Park

Waypoints

Start point

Get Directions

5.40 km

La Table des Marthes

Archaeological Site

7.27 km

Viewpoint

10.2 km

St. Ouen's Bay

Highlight • Beach

With its sun-drenched headland and soft sandy beaches, Jersey's west coast offers some of the island's most enchanting spots. A long stretch of golden sand and views of the Atlantic make St. Ouen's Bay truly special.
Source: jersey.com/things-to-do/points-of-interest/listings/st-ouens-bay

Translated by Google •

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14.6 km

View of the Jersey Coastline

Highlight • Viewpoint

16.8 km

Grosnez Castle Ruins

Highlight • Castle

However, it is called Grosnez Castle. It has a magnificent view over the cliffs.

Translated by Google •

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18.9 km

Giant Puffin Sculptures at Plémont

Highlight • Monument

The creations, made from forged steel and willow, were unveiled in April 2022 and stand at 4m high (13ft) facing each other on the grounds at Plémont.

Tip by

19.0 km

Plémont Bay

Highlight • Beach

A beautiful secluded bay, but a difficult walk down some steps. Very limited parking.

Translated by Google •

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19.0 km

Kissing Puffins sculpture at Petit Plémont

Highlight • Monument

Petit Plémont is almost cut off from the rest of the headland by a deep gorge, and the narrow land connection was defended in the Iron Age by a single bank and moat to defend a promontory fortress.

Translated by Google •

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21.6 km

Greve de Lecq viewpoint

Highlight • Viewpoint

A great view of Greve de Lecq beach. It's a lovely sheltered north facing beach fringed with wooded slopes.

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22.0 km

Grève de Lecq Tower and Beach

Highlight • Historical Site

The defences at Grève de Lecq reached their peak in the early 19th century in direct response to a potential invasion by Napoleon. As a result the bay was further …

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27.1 km

End point

Way Types & Surfaces

Way Types

10.2 km

9.76 km

4.12 km

2.93 km

Surfaces

8.54 km

6.19 km

4.66 km

4.45 km

1.61 km

1.59 km

Elevation

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

Highest point (100 m)

Lowest point (0 m)

Weather

Thursday 9 July

30°C

21°C

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Comments

May 12, 2025,St Brelade - Westküste - Grève de Lecq - Inselumrundung Tag 2

Day 2 of the island tour. For us, the hike started at low tide again, so the first half of the route was entirely a beach walk. Then we headed up the cliffs – past some World War II fortifications and with spectacular views of various bays. After the impressive castle ruins, the path became increasingly narrow and ever more …

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July 9, 2023,From Red Houses to St Peter

A good day trip hike, starting & finishing @ Jersey Airport.

July 31, 2024,95 / 24 Jersey - von der Westküste zur Nordküste

Three different coastal structures on this tour that draws to a close: first, over 7 km along the long beach, then rocky coast with large heath areas and then into the green north with ferns that tried to prevent us from getting through. Lots of ups and downs and almost scorching sun made for sweaty exertion.
And here too: bunkers …

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St. Ouen's Bay – Grosnez Castle Ruins loop from Jersey Airport

St. Ouen's Bay

View of the Jersey Coastline

Grosnez Castle Ruins

Giant Puffin Sculptures at Plémont

Plémont Bay

Kissing Puffins sculpture at Petit Plémont

Greve de Lecq viewpoint

Grève de Lecq Tower and Beach

Nearby routes

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