In 2012 we spent the entire month of June exploring SE Alaska using the AMHS. We booked individual hops between port towns. This allowed us to spend a few days exploring the area around each port, only travel during daylight hours, and our ferry legs were short enough for the fridge to stay cold with the propane off. This trip included several days Juneau->Sitka via the "fast ferry", plus several days taking our tow Jeep to the Glacier Bay Lodge from Juneau. I blogged about our entire Alaska trip, but the SE Alaska portion starts at:
http://arts-work.blogspot.com/2012/06/clover-pass-eagles.html