Following the contours of Council Bluff Lake, the Lake Shore Trail (aka Council Bluff Trail) is a Missouri favorite. This is a long trail, but there is very little elevation gain but short ups and downs around the the lake provide a great workout. There are two steeper, and longer climbs and descents on this trail, and a couple rocky sections but generally this trail is mostly smooth singletrack.
There are several places to start the 11.5 mile loop; this outlined route begins within the Council Bluff Lake Recreation Area at the Wild Boar Hollow Boat Launch, where a $3 day-use fee applies. Another trailhead worth noting begins at the Wild Boar Ridge Campground which has direct run-in/run-out access.