I did the Land Tour in Alaska (from Anchorage to Denali and then joined the ship).   I will preface this with it was one of the best tours we have ever taken.    I do agree with you that there is so little information given before the tour.   I'll try to fill you in.    All of you hotel accommodations are included but meals are not included.  They do give you water on the bus and often pass the hard candy bowl.      On the first evening they will have briefings in small group