Large rocks placed at the foot of a cliff, or at the top of a beach. It forms a permeable barrier to the sea - breaking up the waves, but allowing some water to pass through.
What are some advantages of rock armour?
Some advantages of rock armour are:
It is relatively cheap and easy to construct and maintain
It's often used for fishing from or for sunbathing by tourists
What are some disadvantages of rock armour?
Some disadvantages of rock armour are:
The rocks are usually from somewhere else, so they don't fit in with the local geology and can look out of place
The rocks can be dangerous for people climbing on them
What is the cost of rock armour?
£100,000 to £300,000 for 100 metres.
What is an example of a place where rock armour is used?
