Geysir doesn't 'work' anymore, but Stokkur is 100 meter away and blows water into the air approximately every 8 minutes.
Gullfoss is a nice waterfall where you can get very close to the waterval. It's almost like your standing in the waterfall yourself.
The last stop of the day was the Kerið crater. This was the first crater we saw and visisted. The sun was going down. Afterwards we drove to our guest house to charge our battery for the next exhausting day.