We had a good experience with the Northern Lights and Chena Hot Springs Night Tour. The driver was on time, friendly and informative. He stayed accessible during the entire time we were at Chena which meant he could watch our backpacks while we were wandering around or at the Ice Museum.
Private hot spring under the stars, good food at their restaurant, and a view of the Northern Lights over the darkened hill behind the Activity Center. Splendid.