The crystal clear lake with the beautiful beach, Crystal Lake....go figure!! (Pretty sure given the proximity to the trout pond and pictures). It is a beautiful spot, spring fed - a real gem.
As for the auroras - it can get hit pretty hard because of the rotating season. First time I, I was a kid (probably 15 years ago). There had to be 200-250 people fishing the lake that given night. There were literally people in float tubes, rubber dinghy's, etc.. Never been back! Good luck on your return!