If you fly into Juneau, the towering Mendenhall Glacier is sure to impress. The glacier is huge and dangles right near town. I took a cheap blue bus from the cruise ship down to Mendenhall. It's a pure Alaskan experience to camp near Mendenhall. A state capital with a huge glacier. Awesome. The campsite has flush toilets and a shower house, as well as some covered shelters. Sites can be reserved on Recreation.gov.