Barnafoss is a striking waterfall located in West Iceland on the Hvítá River, near the town of Borgarfjörður and approximately 100 kilometers from Reykjavík. It drops about 9 meters (30 feet) in a series of rapid cascades that surge through a narrow channel carved in the black lava rock of the Hallmundarhraun lava field.

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The name Barnafoss means “Children’s Waterfall,” inspired by a haunting Icelandic legend. The tale tells of two boys from a nearby farm who drowned after falling from a natural stone bridge that once spanned the waterfall. According to the story, their grieving mother either cursed or demanded the destruction of the bridge to prevent further accidents, and it was eventually destroyed—whether by natural causes or by deliberate action remains part of the folklore.

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Barnafoss differs in character from its close neighbor Hraunfossar, which is a series of gentle lava waterfalls. Barnafoss channels its water powerfully through a narrow gorge, creating dramatic, frothy rapids with vivid turquoise hues that contrast beautifully against the dark volcanic rock. Seasonal variations in water flow and light create striking colors and textures throughout the year.

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The waterfall is accessible via a short, easy loop trail starting from a nearby parking area, which also leads visitors to Hraunfossar. The hike is around 0.8 kilometers (half a mile) long with minor elevation changes, making it suitable for families and casual explorers. A bridge crosses the Hvítá River en route, and several viewpoints along the path offer great photo opportunities.