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Jersey

Plémont Bay – Grosnez Castle Ruins loop from St Ouen

Routes

Hiking trails & Routes

Jersey

Plémont Bay – Grosnez Castle Ruins loop from St Ouen

Moderate

4.9

(27)

142

hikers

Plémont Bay – Grosnez Castle Ruins loop from St Ouen

04:21

15.7km

270m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: March 19, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Jersey National Park

Waypoints

Start point

Bus stop

Get Directions

2.95 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 •

Tip by

2.97 km

Plémont Bay

Highlight • Beach

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

Translated by Google •

Tip by

5.25 km

Grosnez Castle Ruins

Highlight • Castle

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

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6.55 km

View of the Pinnacle Settlement

Highlight • Historical Site

Historic site: Ruins visible most likely of a Gallo-Roman temple, but this site has been used as settlement in the neolithic/chalcolithic periods, the Copper Age, Bronze Age and Iron Ago before.

Tip by

7.25 km

View of the Jersey Coastline

Highlight • Viewpoint

12.4 km

Piemont Bay

Highlight • Beach

It is best to walk along the beach at low tide.

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Tip by

12.5 km

Plémont Bay

Highlight • Beach

Plémont Bay is one of the most beautiful bays in Jersey and offers - only at low tide - some caves to explore and also "small pools" for children to …

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12.8 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

15.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

10.9 km

2.31 km

1.99 km

536 m

Surfaces

5.77 km

5.14 km

1.94 km

1.88 km

833 m

187 m

Elevation

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

Weather

Thursday 16 April

17°C

9°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Plémont Bay – Grosnez Castle Ruins loop from St Ouen

Kissing Puffins sculpture at Petit Plémont

Plémont Bay

Grosnez Castle Ruins

View of the Pinnacle Settlement

View of the Jersey Coastline

Piemont Bay

Plémont Bay

Giant Puffin Sculptures at Plémont

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