Easy to reach from the small parking area. There is a sign with some historical background in different languages at the parking area down at the street. From there: On the left you can hike like a hundred meters over two small bridges to the waterfall. It is beautiful there as in the pictures. Looking back will grant you the view to the north atlantic sea and a farm nearby. Seems to be less known and not much visited but is one of the nicest waterfalls I have seen in my travel around Iceland.
No special footwear or gear required, parking for free nearby.