Alaska is an absolutely brilliant state. If you are into wildlife, the great outdoors, scenery and action and adventure, then this tour will provide it in bucketloads. I felt exhausted after this trek, but at the end of it I could have done it again and again. I had such fun, from scenic flight to helicopter rides to dog sledding to canoeing to white water rafting in the most dangerous levels of water imaginable to ice climbing a glacier. I came away bumped, bruised, wet, cold, but always with a smile on my face. I saw dozens of grizzly bears, moose, eagles, caribou and loads of other animals I could never see in The UK.
Take lots of photographs, be prepared for the cold, and be ready to get down and dirty. This ain't luxury, but the experience was so good I couldn't care where I laid my head at night.
Go for it, you won't regret it.