I have enjoyed Anne Spings Greenway the few times I have gone, but some of the descriptions I found to be a bit misleading. First of all, it is a beautiful place! That is undeniable! But if you're looking for hiking, this isn't really the place. Its more like walking through miles of trails. Also, the trails are often narrow, so be prepared to brush against plants and bushes! But they are pretty, and extensive (although sometimes not marked very well), just make sure you aren't looking for any type of hike with an incline. They do have some kayaks and canoes for rent, but the lake is pretty small, so 30 minutes is probably the most you would want to do on the kayak after going around in circles a few times.
Overall it is a nice place to spend a day outdoors, just make sure you aren't expecting a hike or a huge lake to kayak on!