Flora and fauna
The best way to get to Mount Wilson is by car as public transportation can only get you as far as Bell Station and will require to find your way for another 14 km.
Take State Route 40 out of Sydney (towards Richmond), continue drive pass Mount Tomah for another 14 km and find Mount Wilson Rd towards north. This road will leads you into Mount Wilson then forked into The Avenue for the main scenery, or Queens Ave for detour.
There are no public transport to or within the activities in the park. Its car and walk, unless you are a particularly adventurous cyclist, in which case train and bicycle is a possibility.