in the north of Sydney
that is large and very beautiful. It's about 50 square kilometres, and is about 25km north of the centre of Sydney
. It incorporates bits of the Hawkesbury river
, and also has quite a few nice beaches, as well as the bush
Quite a few people live within it; for example, on Scotland Island.
There are lots of good bushwalks through it. Downsides: it's a little pricey if you want to park inside the national park ... it's about A$9. Getting around can be difficult, the drives can be quite long, even though the straight-line distance is small.
A good place to start is Bobbin Head, which is easy to get to. There's an information centre there, as well as boat hire. Half a dozen bushwalks also start there. Motor boats (no licence required) can be hired for about A$50 for a few hours, and it's fun exploring the area. Another popular place is The Basin, which has some nice beaches.
There's also a great little hidden Youth hostel in the park, known as Pittwater YHA. You can either get there by a 6 kilometer walk, or by catching a ferry from Church Point, then walking about 2 kms uphill. They rent out canoes, (which are great by the way, there are lots of secluded quiet beaches to explore). Their rates are reasonable, from A$17 to A$25 a night. Watch out for the kookaburra's though. Last time I was having my lunch on the verandah, one swooped down and stole one of my fish fingers. Ticks can also be a minor annoyance. But the place is beautifully serene.