Cycling between Waterfall and Helensburgh is a nice size trip (10 kilometers).
You can go via the Southern Freeway but I would strongly suggest not to do this: You only have three hills, but these are horrible hills which don't give you any satisfaction. When you do it early in the morning you don't have too much hassle of the traffic going between Sydney and Wollogong.
The path you should take is via the Princes Highway, on which there are more hills but they are not that high. And it will give you more shadowed areas.| Share on Facebook | Share on Twitter