It is a standad state park on the shores of Lake Winnebago. We were actually pretty bored with our 6, 8, and 10 year old after a few hours. I think the issue was that during the summer, there's too much cover from trees and overgrown invasive vegetation to see much of the rock formations or the views of the lake from the Lime Kiln trail. Also, there's really no lake access outside of the marina and the beach, which is just a patch of grass on the lake and had a warning against algae, like all Lake Winnebago beaches do this time of year. The trails that are shown on the lake's edge are almost 40 feet higher on a ledge; several of the other trails through the established natural area are not easily reached without a hike of several miles first. Those didn't look like they were by the lake either, but perhaps they had better views of the lake, forest or wildlife. The lime kiln trail was too long for our inexperienced hiking family, so we just at went far enough to see the creek flowing down the hillside. The mound trail was an easy hike and showed very limited, but better views of the lake and natural limestone formations in the summer; the mounds were interesting and the forest surrounding them was quite nice. The butterfly pond trail was quite popular, as it was paved and accessible; there were many seniors and those in wheelchairs using it. It has tons of wildlife and native flowers. We drove through the campground, which was standard, although they had a separate area for group camping that would be fantastic for scouts. They were in a totally different area than the beach/marina/tower areas and you'd need bikes or a car to get around if staying. The observation tower and nearby playground were nice, but only good for 15-20 minutes of fun. Like many parks, they either lack the budget/staffing or refuse to trim the trees, so the entire upper level/overlook area views are invisible except from the top of the tower. There were stone steps that descended into a natural crack in the stone that would have been fun to explore but they were fenced off and not entirely safe (no handrails, etc.) It would be a great feature to make a few improvements and open that area. They had huge shelters for rent throughout the park for parties. I think my biggest complaint is that the whole thing was build on an old lime processing plant, which was expanded into a quarry later; the campground and other parts of the park were clearly farmland. That means there's almost no trees older than 60 years old; the lime kiln ruins even say that they clearcut the trees to run the furnaces; those operations ceased in 1957. The mound trail says the quarry destroyed most of the mounds on site and a huge portion of the upper park remains paved from the use as a quarry-unsure when it stopped being a quarry, but it seems as if it was only a few decades ago. I like to see undisturbed nature when I go to parks like this and the footprint of human industry is still very prevelent in the entire park and not in an interesting way. Its good for a casual afternoon trip, and may be more interesting in the early spring or fall/winter, but would have been miserable if it would have been a hot summer day.