“Circumnavigate” is an interesting word. I’m not sure it is applicable to paddling around the perimeter of a lake as opposed to paddling around the outside of an island or continent.
In the link below, the map will be centered on Lake Tahoe. Donner lake is the small lake up and left of Tahoe. it will be hard to see becuase of the trip route being displayed on top of the map.
It was a nice trip with the exception of paddling for 40 minutes facing directly into the almost setting sun.