Looking to do some camping and ziplining. Ideally, I'd like a theme park or ranch where the attractions include a zipline as opposed to the (very expensive) zipline being the only attraction. We are in Chicago and not looking to travel more than two hours. Family of 7 with kids ranging from 17 to 6. Plus Grandpa.
Illinois or Indiana would work. Michigan if it's worth it.
Hope to stumble upon one of the best kept secrets of the Midwest....