My favorite non-North Shore MN State Park, Whitewater is in southeastern MN, and is worth a full weekend visit. There is so much to do between swimming, hiking, jumping for rock to rock in the river crossings, exploring inside of chimney rock, and climbing up and down a lot of steps. Consider park hoping to nearby Carley State Park, or for a longer excursion, head over to Niagara Cave to see a 60ft waterfall inside of a cave.