I'm not certain you can "get under the falls" anymore. My brother works at the mill and he said some of the trails have been closed due to safety. We stayed at the hotel across the street so we walker under the bridge to get to the park instead of driving to it and we walked a different trail every day. None of them are that long and they will all lead back to the parking lot. Just make sure you go after a good rain so you can see the falls in it's full glory - beautiful. Not much left to the old mill but you can still see remains of it.

If you don't have a car available Applebee's is across the street and you can walk under the bridge. We stayed at the hotel next to Applebee's and walked to the falls.

It used to be owned by ConAgra. I don't know if it still is but up until recently it was owned by them. I know it is still in use.

There are over 10 miles of connecting bike trails in the Hastings area!