This little park is the smaller one of two in Judy Crescent. This quiet street is inside a boomed off area, so access at night will be difficult to justify. During daylight hours, just say you are going to Ullmann Park (there are a couple of caches there as well). The park is in a residential area, so stealth will be required. In addition, the area is patroled by a security company, so you shouldn't hang around for too long.
You can park in the street very close to the cache, and then sit on the bench while you consider the hint and try to figure out where the cache is hidden - there are a number of possibilities, but only one matches 100%.
Access from Bowling Avenue, turning West into Blackford Road.
Alternatively, from Bowling Avenue, turn West into Alma Road, and then drive through Ernest Ullmann Park into Minto Road.