Coast Community Enhancement

• Longshore drift occurs as the movement of particles going in and out of the ocean causes these particles to move up and down the coast and beach. This movement forms the coastline at Point Peron. At Point Peron the longshore drift is heading in a Southerly direction, causing the particles to move down the beach as shown in the photograph below. The waves are coming onto the beach carrying particles of sand and small sediments such as shell pieces, which are deposited onto the beach before the water recedes. Along the Mandurah coast going northwards, the seasonal movement of sand is stopped by the construction of groynes. This causes the sand to build up on one side of the groyne.

• Constructive waves carry the materials that are laid down on the beach. This process forms the beaches. As the waves come into shore at Point Peron the deposition of sand and small sediments are placed on the beach. Over time this creates a larger beach and smoother sand.

• Destructive waves are large waves that carry more materials that crash into the mainland rock. This type of wave forms bays and headlands. Over time the waves break down the mainland into an arch, which then breaks off into a stack, and then breaks down into a stump. Eventually there is nothing left there. This process happens over a very long period of time. Destructive waves are very powerful and strong waves. They also break down sediments that come into the shore line.

• Erosion is the wearing away of rock by water and wind. This process occurs at Point Peron as erosion forms rock formations, arches, stacks and stumps much like destructive waves. Erosion has also caused the sand dunes to form from the wind blowing the sand into large mounds. Over a ...

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...d area to prevent further environmental damage.

• The drains have been built to remove excess water from the streets and paths making them safer to drive and walk on.

• The jetty has been built for the residents to walk out on without actually getting wet. It is also built for the locals to park their boat.

• The bins have been built for the community to dispose of their waste properly, and stopping it from going into the environment.

• The sea wall has been built to stop erosion taking place on the mainland and to protect the hotels, businesses and residential housing.

• The harbour has been built for the locals to bring their boat into house which is on the canal.

• The park has been built for the residents and locals to have an open space to enjoy nature.

The cultural objects shown demonstrate the ways they enhance the way of life of the community.