In Iceland, this parking lot is really spacious. Apart from toilets, you’ll find seating and an information board here. From here, you can definitely embark on a hike to Hengifoss (or Litlanesfoss if you prefer).
Currently, a new facility building is under construction here.
The parking lot is well signposted. It’s located 35 km southwest of Egilsstadir at the end of Lake Lagarfljot.