One of the highlights on the island was visiting a prehistoric fortress. I can’t imagine how long it took to build all of the perfect walls, not to mention how heavy some of the stones must have been. The van gave us two hours to walk up and explore the fort and the stunning views from the top. There were no railings to keep you from falling over the cliffs so you just had go as far as you felt comfortable.
Not sure I will ever understand how they built all of the rock walls around the island or how they don’t fall over in the harsh winters but it does make for a beautiful backdrop.