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Plémont Bay

A north coast beach reached by a long stairway, with caves exposed at low tide.

Updated 3 September 2026

Typebeach
WhereSt Ouen
Nearest citySt Helier
Best seasonMay to September
Time to allowHalf a day
Getting thereOn the northwest coast in St Ouen; long flight of steps down from the car park
EntryFree

Plémont sits at the northwestern corner of Jersey below cliffs, reached by a long flight of steps from the car park, and the beach only exists at lower tides: at high water the sea covers it entirely. When it is out, caves cut into the cliffs at the back can be walked into and a waterfall comes down the rock at one end. Tide tables matter more here than at almost any other beach on the island.

What you'll find

  • The caves - the openings at the back of the beach, walkable at low tide.
  • The waterfall - the stream coming down the cliff at one end.
  • The stairway - the long descent from the clifftop car park.
  • The tidal beach - sand that disappears entirely at high water.

When to go

May to September is the season, but the tide governs everything: check tables before going. Low water exposes the caves. The beach vanishes at high tide.

Good to know

People get cut off by the tide here and it is a real risk; the caves flood. The stairway is long and steep. Facilities are a seasonal café at the top.

Nearby

Grosnez Castle is south, and Grève de Lecq is east.

What to pack for Plémont Bay

Chosen from what this place is for. Tap a kit for the full checklist.

  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Head torch + spare batteries - Hands-free light is essential; caves are truly dark. Find on Amazon
  • Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
  • Grippy closed shoes - Cave floors are wet, muddy and slick with formations. Find on Amazon

Some links on this page are Amazon affiliate links - if you buy through them we may earn a small commission at no extra cost to you.

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Plan your trip

Where to start if Plémont Bay is going on the list.

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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