Ngaire - I was thinking we arrive in Churchill on Friday 10/28 and leave Churchill on 10/31. If that's correct, it looks better on Friday night than Thursday night for northern lights. The forecast shows more cloud cover Thursday night than Friday night. Those of us who couldn't get to Winnipeg by 5:00pm on Thursday 10/27 have to come in a day earlier and have 2 nights in Winnipeg.