When you are in Iceland the golden circle is one of the things you need to do. The golden circle is a one day round trip where you see the most famous things in Iceland, Thingvellir (we skipped this as we were already there when diving in Silfra), Geysir, Gullfoss and some other waterfalls
As everybody does the golden circle everything is full of tourists and bus tours from the cruise ships anchoring in Reijkjavik…