There is a big difference between paddling Paul Lake on a quiet day as compared to a busy weekend in the summer.   On this sunny day in April, loons were calling across the lake.   Kingfishers flew from tree to tree, chittering as they followed the shoreline.   A great blue heron slowly worked its way along the lake to a new perch.   Fish were jumping with the chironomid hatch.   And two quiet kayakers paddled along the shoreline.