If you can, see if you can get to a bonfire a few hours beforehand. Travel / tourism agencies can arrange this.
Also, if you'd enjoy seeing the Aurora Borealis, know that due to weather, clouds, etc., it isn't very reliable, and it may be best to plan on multiple attempts at it. The experiences we had ranged from disappointing to terrifically amazing, but if we'd only gone the one time, we'd have left without having experienced it.
