Maddens Falls is one of those hidden gems that my friends, Vijay and Som, and I found when we were just driving around in the Royal National Park (RNP). The waterfalls is in the Dharawal National Park. It is about 50 minutes i.e. 60 kilometers from Sydney.
The falls is a short 15 minutes walk from the car park. And it is ideal for an afternoon picnic. The walk starts on a fire trail and heads downhill to the waterfalls.