4WD will get you closer to waterfalls and glaciers than 2WD will. If you're only doing the Golden Circle, you don't need 4WD. If you're going to really go for it, and hit the south coast or one of the peninsulas a bit, you'll want 4WD for some of the roads that lead off of the main, paved roads.
It's definitely not just the Mountain roads (F roads) that require 4WD
Last edited by Out of my Element; Jun 24, 2014 at 2:21 pm