The main reason I booked with a smaller tour company was to see the KeriĆ° volcano crater. This was a dormant volcano which you can drive up to and then walk around. It was also nice because the sun was out at that point of the day! Unfortunately we didn’t get the opportunity to walk down near the lake because we were “on a schedule” and our tour guide didn’t know that we were good tourists who were on time for things. At the end we had a lot of extra time so we could have spent some time hiking here!
Next was a small waterfall named Faxi. It’s nothing too special, especially since we visited Gullfoss afterwards. The only noteworthy thing is that they built a special area to help salmon get up the waterfall and breed (which you might be able to see on the left).
We also saw a random spot in a small town that alluva sudden one day decided to become a sink hole and spew out hot spring water, visited a geothermal power plant (closed) and drove up a hill to see the long pipeline that brings geothermal water into Reykjavik.
We actually had a lot of time because we ended up on a private tour. That’s not how I booked it, because I had book a (cheaper) group tour, but because the operator mixed up and forgot to pick us up, we received a private tour instead. Well worth the price!