Hello! I am planning a trip in October primarily to see the northern lights. Planning to start in Finland and then make my way to Norway. I'm curious about the best route to take, whether it's better to fly or take a train, and any must-visit spots along the way for the best northern lights experience. Also, if anyone has tips on budget-friendly accommodations or any hidden gems in these areas, that would be fantastic. Looking forward to your suggestions and experiences!