Gjárfoss is one of only a few waterfalls located in the Gjáin valley. Gjáin is known for its basalt columns and lush greenery. Gjárfoss is around 49 ft (15 m) in height. While such a small waterfall may seem unimpressive, the area around Gjárfoss has been described as paradise. What makes Gjárfoss unique is the nearly perfect pool it forms at its base. While a difficult waterfall to access, the Gjárfoss offers a prime swimming hole for its visitors.