Kerlingarfoss is a waterfall neighboring Svöðufoss (I think) in the shadow of the imposing Snæfellsjökull Glacier. It sits right behind a farm but apparently there's a rougher trail or 4wd path behind the falls to its top. We didn't try that option out though and were content to see it from a distance on its front side. That view was obtained along an unsigned rough unsealed road about 3.5km west of Ólafsvík.