These names refer to the dock used. You can go to this website and see where your ship is docking. http://www.faxafloahafnir.is/cruiseships/index.php?l=en&w=csyear=2016#2016-9-27 Some docks are right in town, but Skarfabakki is 1 1/2 miles out of town. On our tour we just booked it had a drop down menu that you pick your location for pick up. I verified with the tour operator the pick up location before I paid online and chose the pick up location. I also found that there would be a shuttle to city center from Skarfabakki dock. May or not be offered free by ships. Otherwise 45 min walk.