Anne Marieke took a horse tour in Iceland in 2014 and made a video about it. She calls it Horse Round up Víðidalur. She traveled to many of places in Iceland, from south to north and back. Among other things she saw is the northern lights and many well-know attractions.
Her video shows Iceland as it really is, not the photoshopped version some people promote.
If you are interested in Iceland or in horses, then check out this is the video.