Right next to the Barry Wilde Bridge at Parramatta River, you can hire bikes at a low cost to take a whizz around the riverside. This place has great views and the riverside itself is spectacular! Get hungry or in need of a drink, no problem you can find numerous restaurants and cafes within a minute! Right next to the Ferry Wharf alongside the river you can find restaurants overlooking the river at decent pricing. The cycling itself can be done around the riverside or if you like you can venture off towards Sydney Olympic park, following the river for many different sights. There are many signs to guide you along your trip and specific bike trails for cycling and walking purposes so you won't need to worry about cars and just enjoy the nature! At night the river usually has a fountain under the bridge and lights that change colour and illuminate the river.
Best way to enjoy nature and something to do outdoors, as well as building your health!