There are Halachic issues with visiting Alaska, namely what day Shabbos is , is a debatable. (Due to the International Date line)
People who travel in general have difficulty getting kosher food unless you go to some major destination like Israel, Florida or many major European cities and even places where food is available there might only be 1 or 2 kosher places (Like Athens) and except for Paris or London none have more than 4 or 5