Kerlingarfoss is an approximately 60-metre waterfall on the northern side of the Snæfellsnes Peninsula, a short distance east of Svöðufoss and south of the village of Rif. The waterfall drops from the mountain escarpment at Fossgil and is considerably less known than neighbouring Svöðufoss.
Kerlingarfoss is located on the stream Fosslækur, which continues down the slopes towards Laxá á Breið. Although the waterfall lies only around 650 metres east of Svöðufoss, it is much less prominent from the main travel routes and is easily overlooked by visitors to the area.
The waterfall also appears in historic place-name and boundary records from Snæfellsnes. Early twentieth-century boundary descriptions use Kerlingarfoss as a landmark on the boundary between the farms Foss and Vaðstakksheiði, showing that the name has long been part of the local landscape.
The landscape beneath Snæfellsjökull is characterised by steep mountain slopes, ravines, streams and numerous waterfalls. Nearby Svöðufoss is one of the better-known waterfalls on northern Snæfellsnes, while Snæfellsjökull dominates the landscape to the south.
Kerlingarfoss is not a developed visitor attraction like Svöðufoss, and visitors should take particular care around steep or wet terrain. For travellers interested in exploring some of the lesser-known natural features of Snæfellsnes, the waterfall offers an interesting glimpse into the peninsula's landscape and history.