Boardman River is a 11.9 mile moderately trafficked point-to-point trail located near Traverse City, Michigan that features a river and is rated as moderate. The trail is primarily used for fly fishing, canoeing, and whitewater kayaking and is accessible from March until October.
Again, kayaking. I've done the whole entire (paddleable) river but it'll take you longer than you think 11 miles would take....like an entire summer's day! An excellent way to spend it, but I think it's much more fun to break it up into chunks. Love this river, with its natural scenery, beautiful houses and the fun of paddling thru downtown TC right into West Bay! A word of caution, there are some fun class II rapids along the way so be sure you're prepared to rescue yourself/others along the way. Also, I would recommend taking out at the tubes that run under South Airport Rd.....unless you don't mind tons of spiders (I learned the hard way)!
An awesome kayak, canoe, or tube float. Launch at Shumsky and get on down to Beitner rd in a couple hours. Beautiful river. Please be mindful of the fly fisherman and respect the space. You can portage further down and paddle through Keystone and Sabin as well.