Hemsby Lifeboat's offshore rescue is back in service two weeks after erosion blocked access to the beach. 

Members of the crew and volunteers have rebuilt the slipway that was washed away earlier this month leaving a drop of approximately five feet down to the shore.

On October 2, around two metres of dunes by the Gap collapsed during the high tide and strong winds.

Dan Hurd, lifeboat coxswain, said the repairs were "not ideal but we're hoping it holds".

Dan Hurd, coxswain at Hemsby Independent Lifeboat.Dan Hurd, coxswain at Hemsby Independent Lifeboat. (Image: James Weeds) He has previously expressed frustration that efforts to protect the dunes from erosion are "dragging on" and in the meantime the lifeboat service is expected to carry out repairs.

"It's a cost to us yet again," he said. 

The slipway at Hemsby Gap after it was damaged by erosion on October 2.The slipway at Hemsby Gap after it was damaged by erosion on October 2. (Image: Supplied)

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The lifeboat already has machinery to help them carry out repair work on the slipway but he said they need a dumper.

Fortunately, while the lifeboat was off service, there were no call-outs.

But Mr Hurd said that ideally the lifeboat needs "a more permanent fixture like a concrete slipway" at the beach.