Taking family vacation to Alaska this year! This is a family vacation, not a guys cast and blast (one day but not this summer).

Will be there June 4-12, 2016. Probably split time between Seward/Homer and Denali National Park. Wife, kids 16 yr boy, 14 yr girl and 10 yr boy. We are typically very energetic and outdoors people but do appreciate nice accommodations. Looking for accommodations in the level of three star or better range (preferably better).


Here are some of the things we are looking to do. Any advice on outfitters, hotels/resorts ect. would be appreciated.
1. Glaciers;
2. Wildlife viewing, bears/moose/caribou/otters/sea lions/eagles ect.;
3. Fishing out of Seward, one day two/at most, would like to do a combo halibut/king salmon trip;
4. Whitewater rafting; and
5. Hiking.

Is it better to rent a car/SUV or take the trains?

Any advice would be appreciated.