Nan L.
Google
This park is on a mountain with pretty steep elevation, so if you're not ready to climb, I would suggest just driving up and parking the car by the street and climbing from the reservoir area. It's much easier.
The view is beautiful, especially from the peak of the park, and there are trails for both walkers and bicycle riders.
There is also a dog park on the south side, which I haven't gone to, but I see many people walking their dogs heading down to that area.
There are two reservoirs on the west side, providing a good view towards downtown, and picnic or camping right by the water.