I went all the way up to the Arctic in April and only saw the Northern Lights once (and only for about two minutes). Twenty-one hours of daylight at that time of year will do that. But, the other day the forecasting for auroras looked very promising here in Banff National Park, so a group of friends headed down to the shores of Lake Minnewanka to see if we could get a glimpse of the lights. Clouds hindered our view to the North, but we could see an intense green glow behind them around 2:30am. The stargazing was well-worth staying up for.