To get around Iceland, we recommend renting a car. It will give you the most flexibility to explore different areas of the country. Be prepared for snowy and icy roads during the winter months. A 4x4 vehicle may be necessary for some areas. Gas is expensive in Iceland, so be sure to factor that into your budget. You can also take scheduled coach buses between cities if you prefer not to drive.
If you have more time, consider adding a few extra days in each location to fully explore and immerse yourself in the local culture.
If you have less time, consider removing a few locations and focusing on the ones that interest you the most. It's better to fully enjoy a few destinations than feel rushed trying to see them all.