We went on two out of three so far - the Tradition Lake trail, and the Talus Rocks/Bat Cave.
The Tradition Lake trail is more of a Path. Nice views of the lake, and very flat. There's a platform at the far end, and we talked, and watched ducks swim around there. It would be a great introduction to hiking for kids... we used it to take a break at the end of a tough day from work, and talk.
The Talus Rocks trail was fun. A bit of a hill, but not very bad at all. The trail up was very well maintained, and entertaining, with views of the valley here and there. The rocks were interesting, and the loop around the rocks was quite small, and sported an interesting bridge. The bat cave itself was interesting for its residents, although you can't really get a look into the cave itself. The rocks are interesting, and the trees growing around them made for a great picture opportunity.