A family holiday park has announced it is closing "with immediate effect".
Pontins in Camber Sands, near Rye, announced the closure on its website today.
The camp, which is owned by Britannia Hotels, was built in 1968 and covers 32 acres with 820 self catering chalets.
A statement on its website said: "We regret to inform you that our parks in Prestatyn and Camber Sands will be closing with immediate effect.
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"Customers whose bookings will be affected by these closures will be contacted by our team and refunded. We apologise for any inconvenience caused."
The reason for closing has not yet been revealed.
The Prestatyn site is in North Wales.
Britannia Hotels bought both sites in February 2011.
Pontins has been approached for further comment.