We launched our canoe at the Wekiva Marina and paddled to where the Wekiva River meets Rock Springs Run. From there, we headed up the Run. It was a weekday and we would meet only a few other paddlers on the river. We went against the current, stopping often to fish or snack. After several hours, we reluctantly began the return trek to the marina.
Wekiwa Springs State Park - http://www.floridastateparks.org/WekiwaSprings/
Wekiva Marina - http://wekiva-marina.com/
King's Landing - http://www.kingslandingfl.com/index.php