staying at lake mcdonald lodge (fri) aug 31st. i have a boat-ranger led hike the following morning at st mary's lake. i believe it starts at 9. how early should i leave the mcdonald lodge that morning? similar situation the following day. staying at st mary's lodge sat night and need to be at many glacier lodge for another boat-ranger hike that day (sun). i think it starts at 10. at what time do i need to leave st mary's on that morning to make the many trip? thanks to anyone who is familiar with that and their helpful response!