One for the bird watchers.
"Hidden" down a public footpath, is Anton Crescent Wetlands, a local nature reserve. It is closed to the public, but can be viewed from the footpath quite easily. There's lots of bird life to be seen, albeit at a distance.
More details on the reserve and on the wildlife that can be seen can be found by a quick web search, and Wikipedia also has a short entry on it.
And... it's just next to a supermarket if you need to do your shopping too. And a fast food restaurant if you want to reward yourself with a burger.