Weep hole: hole through a solid revetment, bulkhead or seawall for relieving water pressure.

UNESCO: L O S S A R Y

Revetment: shore protection structure made with stones laid on a sloping face.

UNESCO: L O S S A R Y

Flank protection: angled section of wall at the end of a shore protection structure, for example a seawall or revetment.

UNESCO: L O S S A R Y

Four of the options involve replenishing the beach and installing different combinations of groynes or, in one case, a rock revetment.

BBC: Clacton sea defence plan 'could cost ?27m'

There is already a wall, known as a revetment, on the right side of the harbour exit but officials say a left wall is needed.

BBC: St Aubin

She said, in addition to the revetment, they would be "looking at enhancing the lighting, enhancing the bollards and a complete set of new signage" for the area.

BBC: St Aubin