Klukkufoss is a waterfall fed by the meltwaters of the Snæfellsjökull Glacier dominating the west end of the Snæfellsnes Peninsula. It's actually more of a stop along the way to the glacier itself via a rough access road (about 8.5km south of Hellissandur) that eventually becomes a 4wd road past the falls. You only have to go about 2.2km along that access road to get to the small pullout for the falls. Once there, you can walk uphill for about 15-20 minutes to get closer to the falls where you can also look back towards the town of Hellissandur as well as the Atlantic Ocean.