I'm spending 5 nights there in early March. We ruled out hiring a car because of the ice and snow (being from Australia I don't have experience driving in those conditions)
Going with a local tour company to explore the South Coast, hopefully see the Northern Lights on the drive home.
Going with a cheaper company to do the ring road and (the highlight) some snorkeling in a glacial lake! I should pack some duty free whiskey for post snorkel warming.
Brrrrrrrrr
I should make a trip report post trip.