My 9 year old and I went to Alaska last summer and booked all excursions on our own. We did ziplining and dogsledding (on dirt) through Alaska excursions in Skagway. I loved the ziplining and my kiddo loved the sled dog puppies. In Juneau we booked rum runner charters and had a boat to ourselves for whalewatching. We enjoyed this also. They can take up to 6 so works for a small group. In Ketchikan we did a helicopter tour through Ketchikan Helicopters. This was AMAZING and I would highly recommend it. We landed in a field and hiked for a bit to see salmon and bears. This only works for 2 people though. We loved Alaska and would love to go back!