Routes

Planner

Features

Updates

App

Get the App

Castles

Grosnez Castle Ruins

Castles

Grosnez Castle Ruins

Highlight • Castle

Grosnez Castle Ruins

Recommended by 95 hikers out of 96

Save

Location: Jersey

Save

See hikes here

Take Me There

Routes here

Best Hikes to Grosnez Castle Ruins

4.9

(27)

143

hikers

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

15.7km

04:21

270m

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

Navigate

Send to Phone

Save

Moderate

4.7

(25)

106

hikers

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

8.06km

02:10

90m

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

Navigate

Send to Phone

Save

Moderate

4.7

(20)

108

hikers

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

8.41km

02:17

110m

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

Navigate

Send to Phone

Save

Moderate

Tips

Verena

September 3, 2018

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

Translated by Google •

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.

Translated by Google •

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

Translated by Google •

In the know? Log-in to add a tip for other adventurers!

Details

Informations

Elevation 60 m

Weather

Today

Sunday 28 December

8°C

3°C

0 %

Additional weather tips

Max wind speed: 30.0 km/h

Most visited during

January

February

March

April

May

June

July

August

September

October

November

December

See hikes here

Take Me There

Location: Jersey

Other Popular Places to Check Out

Grève de Lecq Tower and Beach

The Pinnacle

Le Pinacle and Les Landes Cliffs

La Rocco Tower

Faulkner Fisheries Bunker

Sorel Point Lighthouse

Stone Archway Tunnel on the Former Railway Cycle Path

Plémont Bay

Moulin de Quétivel

View of Portelet Beach

Plémont Bay

Piemont Bay

Grosnez Castle Ruins

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

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

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

Other Popular Places to Check Out

We value your privacy ⛰️

We value your privacy ⛰️