The Seashore Crossword

An area of sand b....?
Rock rather like a gateway in the water.
Where the land meets the sea.
High coastal rock face.
The depositing of beach material.
The movement of sand, shingle, etc to a different part of the coast.
Wall built to protect the land from the action of the sea.
Moving ridges of water- we see rolling onto the beach.
A concave area of beach between two headlands.
Area of land jutting into the sea.
A hollow in the rock face.
Grains of rock found at the seashore.
Man-made structures designed to prevent movement of sand.
Small stones.
The action of the sea wearing away rocks.
A column of rock standing in the sea.
The rise and fall of the sea resulting in two high _ _ _ _ _ and two low _ _ _ _ _ per day.