St Aubin's Fort — Jersey
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A tidal islet fort, steeped in history

TidesHistoryWalk

St Aubin's Fort

St Aubin's Bay 1 hour Verified 2026-06

Perched on its own tidal island within St Aubin's Bay, this historic fort offers a glimpse into Jersey's coastal defences. Reachable only at low tide, it provides a unique walking experience across the seabed to its commanding walls.

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The story

St Aubin's Fort stands as a venerable sentinel, guarding the approaches to St Aubin's harbour. Its origins stretch back to the 16th century, though much of what stands today reflects development in the 17th and 18th centuries. Built strategically to complement Elizabeth Castle further along the bay, it formed a vital part of Jersey's coastal protection against French incursions. The fort's isolated position, accessible by land only when the sea recedes, speaks to a time when defensive architecture had to contend with the island's powerful tides. Though smaller than its illustrious neighbour, St Aubin's Fort presents a well-preserved example of Jersey's military heritage, offering a tangible connection to centuries of island defence.

What to expect

Visitors can walk across the exposed seabed from the shore at low tide, approaching the fort's robust stone walls. Once on the islet, you can stroll around the exterior, observing the structure and its strategic placement within the bay. The walk itself is an experience, offering expansive views of St Aubin's Bay and the Jersey coastline. While internal access to the fort is restricted as it is privately owned, exploring its perimeter and the unique tidal landscape surrounding it provides ample opportunity for reflection and photography.

Highlights

  • Walk across the seabed at low tide
  • Explore the historic fort's exterior
  • Panoramic views of St Aubin's Bay
  • Observe ancient coastal defences
  • Experience Jersey's tidal landscape

Where you'll find it

St Aubin's Fort is situated on a small tidal island in St Aubin's Bay, directly opposite the village of St Aubin. Access is on foot across the sand from the harbour at low tide. The village itself offers various amenities and is well-connected by bus services from St Helier, making it a convenient excursion with several dining options nearby.

Insider tip

Ensure you check the local tide times carefully before setting out, as the causeway to the fort is completely submerged at high tide.

Best time to visit

Visit during a receding low tide to allow ample time to walk to and from the fort comfortably.

Good to know

Hours and prices change seasonally — check the official site before visiting.

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A note on accuracy. This guide is designed to help you plan your trip. Opening times, prices, travel rules, transport and tide information can change. Always check official sources before travelling or booking.