What a great spot. A lovely facility with neat trails through a variety of natural areas. It also is connected to the Edna Taylor Conservation Area so that makes the outdoor space feel even bigger, right in the heart of Monona.
The staff is friendly and enthusiastic, doing a very nice job hosting birthday parties, making it really enjoyable for a group of kids. Yes, a nature-themed birthday party, what could be better! They also host a ton of other events and programs, it's worth taking a peek at their website to see stuff for kids (i.e., summer camps or nature days when school is closed) and events for the general community (adults can have fun in nature too!)
A well-kept facility and park, definitely worth stopping by. No dogs allowed, don't be sad.