The Merkjá river passes under a stone arch at the very top of the falls. As the rock is relatively soft, the waterfall has changed over time. Around 1947 the upper half of the waterfall could hardly be seen as the water flowed into a vertical tunnel behind the cliff. It was only visible through three different openings or ‘windows’ one above the other. The water came out through the bottom ‘window’, forming a beautiful arch, except when the water rose in the river, forcing it through all three windows.
Gluggafoss (Window Falls), also known as Merkjárfoss. The Merkjá River has several beautiful waterfalls, but the most outstanding is Gluggafoss. It has formed tunnels and grooves through the soft rock and a series of ‘windows’ in the tunnels, thereby earning the name ‘Gluggafoss’.
The lower part of Gluggafoss or Window Falls, which is also known as Merkjárfoss. The Merkjá River has several beautiful waterfalls, but the most outstanding is Gluggafoss. It has formed tunnels and grooves through the soft rock and a series of ‘windows’ in the tunnels, thereby earning the name ‘Gluggafoss’.
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