If you're keen to immerse yourself in the wilderness — and go for a dip — without going more than an hour out of the city, Werribee Gorge should be top of your list. To reach the water, you'll need to follow the Werribee Gorge Circuit Track — it's a a steep, rocky 8.5-kilometre walk, which is challenging and dangerous at times, but comes with rather breathtaking scenery. Have a dip at Needles Beach or keep going until you reach the biggest rock pool, Blackwood.