I am planning a road trip home with my daughter from Bozeman around May 12 this year and was thinking of trying to check out Glacier. Is that too early to make it worth going, or is the park even open then? I looked online and it shows reservations required beginning May24, but not sure if that is just related to Memorial Day or not. We always try to go see something new on trips, so this was appealing because I thought maybe we could avoid some of the crowds. Thanks for any info.