I set a goal to visit as many national parks as possible on my RV trip. Some I have visited are famous, while others of not well known. I put Indiana Dunes National Park in the latter category. I had never heard of it until I started reviewing all the national parks. It is quite unique in that it has several ecosystems all in one national park. I think it is probably most well known for its beaches and dunes. It is a fascinating patchwork of properties that contain all these different ecosystems together. I thoroughly enjoyed my day visiting this national park.