Dakotas

Starting to plan a fall trip to North/South Dakota to visit Badlands, Wind Cave, Roosevelt and it seems like Custer State park and Jewel Cave needs to be added. It will be a 10-ish day trip.

We will be flying into DIK. Realistically, how many days should we plan for Theodore Roosevelt NP? I am assuming based on initial searches that we will be dedicating more time in South Dakota.

Open to suggestions.