You should go to Busselton

Situated 2h25 min in the south of Perth, Busselton is my favourite place. The city is famous for his Jetty which is 1.841km long. It is the longest timber piled jetty in the southern hemisphere and is operated by a non-profit community organisation.

I would recommend to go there during summer to enjoy the amazing clear water. You can choose to walk or to take the train to go at the top of the jetty.