If you love watching wildlife, awesome scenery, good people, and terrific monuments, I highly recommend Custer State Park!!
Especially later in the year. Fall is AWESOME. Critters are more visible, moving more, cooler temperatures, & not crowded at all.
Talk to the workers in the park. They will be happy to steer you in the right direction to find whatever critters you're looking for.
Glacier is awesome! We've been to most of the more popular National Parks and Glacier is our favorite. Incredible hiking if you're into that! I've taken my family there twice and we did quite a few day hikes. If you're not a hiker you can have a fantastic time just taking the Going To The Sun Road across the park and back. There's enough to see on it without ever leaving the road. For something off the beaten path take a ride up to Polebridge and have a cinnamon roll at the Mercantile. Check out the ranger guided hikes, seminars, and other things that are listed in the park newspaper for more interesting ideas.
Three planned so far this year. First is a trip to Charleston/Savanna/Hilton Head for some good food and fishing in March. Then Canada for the walleye opener on Sturgeon Lake, Ontario. Then we’re renting a place for a week on a lake in Vilas Co where we’re interested in possibly buying a cabin at some point. Gotta check out the fishing and dinning situation.