I love the recycling hints and the native wild plant displays and love to pic up a polished rock from the gift store as a memento from our trip there.
Downstairs is an aquarium and bird watching area along with more hands on activities, such as excavating (ie Sandpit) and I particularly love the geology displays (in particular the fluorescent minerals).
Upstairs is my favorite center, the library with kids books on nature and adult gardening and other books. However we are usually worn out at this point and never take enough advantage of the library to sit and read. Perhaps when the kids are older.
Outside they were working on the playground when I was there but I heard that the playground was finished very shortly after my trip. So we will definitely be there again very soon.
Trailside Nature and Science center