Here is Park Information from the Minneapolis Park and Recreation Board.
Many ways to come at this one. Difficulty would be 1 star, but it's raised to 1.5 due to the STEALTH you must use when getting it. If you do not use STEALTH, you risk the cache being found by muggles.
Easy cache for the kids. Make sure they know how to act sneaky. :-)
Not recommended for night caching.
Also spend some time to enjoy the nice view this cache takes you to.
Lastly, if the cache location has people at it, you may not be able to get it. Sorry. All part of the game.
Have fun!