THE idea of grabbing your surfboard and heading out to Blacktown may seem strange to the average Sydneysider, but it could soon be a reality.

As the political landscape of western Sydney changed from Labor to Liberal at the weekend's council elections, so the physical landscape is about to change with the construction of a $115 million water theme park due to open before the end of next year.

Bigger, brasher ... Wet'n'Wild Sydney will rival the Gold Coast original.

The Premier, Barry O'Farrell, who is also the Minister for Western Sydney, was on site as the first sods were turned for the construction of Wet'n'Wild Sydney yesterday - a bigger, brasher version of its Gold Coast counterpart.

The dusty rolling hills near Prospect Reservoir will soon be transformed into a massive technicolour theme park, complete with a fake beach the size of Freshwater with waves up to three metres high.