I am not sure, but I did find this.
Thread: Riverwalk Downtown Detroit
Seen this on another post is this true. From a person that attended the picnic
Only issue I had was being asked to leave the Riverwalk because as it turns out is private property and they prohibit weapons. Security was cool about it and didn't make a big deal. No issues anywhere else.
The part we walked onto turned out to be private property. Apparently you go from walking on a public sidewalk to walking on a private one. The private part is owned by the GM Renaissance Center. There are no signs posted prohibiting weapons that we saw. Heck we didn't see any signs indicating we were going onto private property.
"No state shall convert a liberty to a privilege, license it, and charge a fee therefor.- Murdock vs Pennsylvania 319 US 105
...If the state converts a right into a privelege, the citizen can ignore the license and fee and engage in the right... with impunity.
- Shuttleworth vs City of Birmingham, Alabama 317 US 262
Where rights secured by the Constitution are involved, there can be no legislation which would abrogate them.
- Miranda vs Arizona 384 US 436
you would expect that there would be some sort of public easement along the river that would allow you to travel across that property. but i don't know.
"If it ain't loaded and cocked it don't shoot." - Rooster Cogburn