Yes, we were up at Massassauga Park in Three Finger Bay ten days ago. It was 77F at the surface. I cannot remember Georgian Bay being so warm. It just might break 80.I was out fishing last evening. Beautiful night. Salmon were there but not interested in what we had to offer. Surface temperature of the water in the middle of the bay was 79.5F and it was in the 70's at 90 ft deep. That is as warm as I have seen it in the 20 years I have been on Georgian Bay. Great swimming though.