Ku-ring-gai has a number of picturesque waterfalls, often hidden away in pockets of bushland near urban areas. Some are easy to get to, although many need a bit of a scramble to get the best view. Almost all are best visited after some heavy rain!
Babbage Falls is a small waterfall along Moores Creek on the Little Digger Track. For the best view, follow the secret track that takes you to a long overhang below the falls.
The Cascades is more of a waterhole than a waterfall, but does have a number of small cascades. Continue down Middle Harbour Creek after rain for the best cascades.
Best visited after rain, the Tree Fern Gully Falls is in the Ku-ring-gai Wildflower Garden. The Mueller Track passes the top of the waterfall, and an informal pad leads to the base.