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Jersey

Grosnez Castle Ruins

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Places to see

Castles

Jersey

Grosnez Castle Ruins

Recommended by 92 hikers out of 93

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Location: Jersey

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Best Hikes to Grosnez Castle Ruins

4.9

(25)

139

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1. Plémont Bay – Grosnez Castle Ruins loop from St. Ouen

15.7km

04:21

270m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

4.7

(19)

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2. Plémont Bay – Grosnez Castle Ruins loop from St. Ouen

8.17km

02:12

100m

Intermediate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Intermediate

4.6

(14)

hikers

3. View of the Jersey Coastline – Grosnez Castle Ruins loop from St. Ouen

8.89km

02:27

140m

Intermediate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Intermediate

Tips

Verena

September 3, 2018

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

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Biitii 105 💗💜

June 15, 2019

Grosnez Castle towers over the northwestern tip of Jersey, above a bluff. This castle was built in the 14th century and had a protective function, especially during the Hundred Years War. Unfortunately, only the gate with surrounding walls and house foundations are preserved inside. If you want to experience the steep coast very close, just go down the steps to the beacon.

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Andi

July 11, 2025

Grosnez Castle is a small 14th-century castle ruin located 4.5 kilometers from Saint Ouen, on the northwest coast of the Channel Island of Jersey. The name is derived from the Patois word grar ness – for "grey headland" – an apt description of the site.

The castle was built around 1330 by Sir John des Roches.

The gatehouse, the highest remaining part of the ruins, was protected by a drawbridge and a portcullis. However, the castle had several weaknesses. There was no second level of defence and no sally ports for counterattacks. Most importantly, there was no water supply within the walls. The castle was captured by French troops in 1373 and 1381 and was probably destroyed during the occupation of Jersey (1461–1468).

Source: de.m.wikipedia.org/wiki/Grosnez_Castle

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Details

Informations

Elevation 60 m

Weather

Today

Sunday 21 September

15°C

13°C

100 %

If you start your activity now...

Max wind speed: 7.0 km/h

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See hikes here

Take Me There

Location: Jersey

Grosnez Castle Ruins

1. Plémont Bay – Grosnez Castle Ruins loop from St. Ouen

2. Plémont Bay – Grosnez Castle Ruins loop from St. Ouen

3. View of the Jersey Coastline – Grosnez Castle Ruins loop from St. Ouen

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