Plan to spend the day at the park, and it's best to arrive early because the rangers close it to new arrivals when it reaches capacity.
On a hot summer's day, bring your bathers and towel and head along the short path to the bustling natural rock pool where the Serpentine River tumbles down a 15 metre granite cliff. Be prepared to scramble over the granite boulders for a spot of your own. There is also a handrail to assist safe entry into the pool. When we visited in late December rangers discouraged visitors from bringing large amounts of stuff (such as eskies and large inflatable toys) into this area. A ranger was on duty by the pool.
In spring (and in summer too, if you don't mind breaking out in a sweat and are well prepared with sunblock and water) this park is ideal for bushwalking. We did part of Kitty's Gorge walk in September and although we didn't find 'fields of flowers' we did find some. The walk was moderately difficult and meandered through varying landscapes including lush forest which was bisected with waterfalls and bubbling creeks.
The park has good facilities including a sealed road and ample car parking, an inviting grassy picnic area, shady picnic tables, gas barbeques, toilets and a food truck which offers a range of food and drinks.