Like a natural Garden Eden Gjáin is showing its beauty especially in summertime. Only a walking path and some wooden bridges are made by men. The waterfalls, natural flowerbeds, caves, stone formations which look like statues, all that is made by mother nature and impresses by its beauty.
Also the makers of Game of Thrones have been the same opinion as they used this place for a scene in the series. For me Gjáin is a very special place and definitely worth a look.