Best places to go in Alaska in 9 days?

Me and my family our going to Alaska for 9 days in mid August. I'm the oldest of five kids (I'm 15), and the youngest is 5. My dad put me in charge of planning the activities and etc. Since it's our first time going to Alaska we're kind of blind. We're flying in and out of Anchorage. We were thinking about taking a train into Denali. We definetly know that we want to take a glacier and wildlife cruise. Me and my parents are really into scenery. If we travel anywhere outside of Anchorage (which I know we will) we don't want to be in the car, traveling, all day. Any suggestions?