It was a 2 mile walk from my hotel, but absolutely worth every step. It's much larger than I expected and has a variety of different gardens to enjoy. A park for kids to romp in. Pretty nice place to visit.
We took the bus from the centre to this garden which is right next door to the zoo. It is a very nice enjoyable garden and the Japanese garden is the highlight, although our tranquility was broken by groups of students who were purely there to enjoy themselves including getting in the water and generally being childish and noisey.