The north and north-west of Sydney has many waterfalls and cascades. While some have been affected by development, many of them are protected by national parks and bushland reserves. This list of waterfalls in Sydney’s north listed include those in Garigal National Park, Ku-ring-gai Chase and Lane Cove National Park.
Refuge Bay Waterfall is an impressive waterfall at West Head, which plunges onto the back of the beach. It's possible to walk behind the waterfall, or climb up to a swimming hole above 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.