Lake Minnewaska Loop is a 20.3 mile loop trail located near Glenwood, MN. The trail is primarily used for road biking and is accessible from April until October.
Didn't do the whole thing, went on a different trail than anticipated. Nonetheless, nice views here and there. Really easy hike. Spent a few hours wandering around out there. Look out for snakes! There are warning signs for rattlers... We didn't see any of those, but we saw a 6ft long black racer one of the times that we wandered off the beaten path.