I'm planning a visit to Rovaniemi in January with my girlfriend. The main idea is to see the northern lights which we understand is not always possible. Since we want to maximize our possibilities, all the tours we found to go aurora-hunting last up to 3 hours, we were thinking to rent a car and go to the spots that these tours usually take you so we can stay as long as we want.
My main question is, is it really safe for 2 foreigners visiting Finland for the first time to do this on their own?
Edit: By safe I mean, getting lost, easyness to manage yourself in the surroundings due the weather, unforseen events, wildlife, etc.