Gljúfrabúi: The Waterfall Iceland Kept Hidden

Walk the road along the South Coast and you could pass within a few hundred metres of Gljúfrabúi and never know it was there. Unlike almost every other major waterfall in Iceland, it isn't visible from any distance at all — it's tucked entirely inside a narrow, moss-walled gorge, and the only way to see it is to go looking for the gap in the rock and step inside.

The Canyon Dweller

The name Gljúfrabúi translates roughly to "canyon dweller" or "the one who lives in the gorge," and it's hard to imagine a more literal piece of Icelandic place-naming. The falls drop about 40 metres inside a slot canyon carved into the same cliff line as Seljalandsfoss, just a short walk up the road — but where Seljalandsfoss stands out in the open, Gljúfrabúi is folded almost entirely out of sight, hemmed in on all sides by sheer, moss-covered basalt walls that block any outside view of the water at all. A single narrow gap in the rock, just wide enough to walk through, is the only way in.

A Gentler River, and a Wade to Reach It

Unlike the glacier-fed waterfalls that dominate this stretch of coast, Gljúfrabúi's river, the Gljúfurá, is spring-fed — which gives it a steadier, gentler character than the more forceful, sediment-heavy glacial falls nearby. Getting close still means committing to wet feet: the gorge floor is a shallow stream, and reaching the base of the falls means wading a short distance through it, over slick stones underfoot. It's a small price for the reward — standing directly beneath the water, looking straight up through a narrow slot of daylight at the top of the canyon, moss glowing green in whatever light manages to filter down.

A waterfall built to be found, not seen — and one of the few on this coast you have to earn.

Small Facts Worth Knowing

• Gljúfrabúi means "canyon dweller" or "the one who lives in the gorge"— a name that describes the waterfall almost literally, since it's folded entirely inside a narrow basalt gorge.
• It drops roughly 40 metres — slightly shorter than its more famous neighbour Seljalandsfoss, just a few hundred metres up the same cliff line.
• Its river is spring-fed, not glacial — giving Gljúfrabúi a gentler, steadier flow than the meltwater-driven falls elsewhere on the South Coast.
• It's genuinely invisible from outside— a single narrow slot in the rock is the only way in, and there's no view of the falls from the road or car park.
• Reaching the base means wading— the gorge floor is a shallow stream, so waterproof boots aren't optional if you want to stand underneath it.
• It sits about 128 kilometres from Reykjavík — close enough to pair easily with Seljalandsfoss and Skógafoss on the same South Coast day.

Before You Go

The walk in from the car park is only about 300 metres, but plan on wet feet from the last stretch onward — waterproof boots make the difference between a quick detour and a genuinely uncomfortable one. Because it sits so close to Seljalandsfoss, it's an easy add-on rather than a separate stop, and usually far quieter than its neighbour.