Chula Vista itself has an indoor water park, spa, and 18 hole golf course!
Take in the fall colors on a Dells Boat tour, just down the road from Chula Vista.
https://www.dellsboats.com/
Take a hike in one of the nearby state parks -- Mirror Lake and Rocky Arbor are within 10 miles, and Devil's Lake is just a little further down the road.
https://dnr.wisconsin.gov/topic/Parks
Try some local wine and spirits at Fawn Creek, Wollersheim, Balanced Rock, and Baraboo Bluffs.
Or enjoy fall favorites at Ski-Hi Fruit Farm and Country Bumpkin Farm Market!