Drivers in Whitstable face a parking nightmare this summer as the Gorrell Tank closes for emergency repair work.
Southern Water needs access to the stormwater tank beneath the 245-space car park after identifying issues with it.
The work will last up to five weeks.
Tankerton councillor Neil Baker said Whitstable already lacks enough parking to accommodate those wanting to visit.
“This it is unhelpful as the summer season ramps up,” the Conservative said.
“Perhaps it’s time for Southern Water to bring forward plans for a complete repair job that will last, rather than risk closures with no notice on a regular basis.
“Parking at Whitstable is not enough at the best of times.
“It would be preferable if it was for planned works as they would be easier to arrange than for immediate closures, although I accept there are issues surrounding public safety.”
The Gorrell Tank is used in the summer by people visiting the shops, harbour and beach. It has suffered closures in previous years.
Southern Water has written to residents to apologise for the inconvenience, but insists safety concerns are paramount.
The firm said: “We’ve been monitoring the temporary supports put in place at the Gorrell Tank which has a stormwater tank located under the car park.
“Our recent inspection has shown that these supports need some additional remedial work. We must therefore close the car park for health and safety reasons with immediate effect to undertake this work.
“We’ll reopen the car park open as soon as it is safe to do so. We understand and apologise for any inconvenience this might cause, but we must put the safety of the public first.”