Secrets behind the waterfall

Seljalandsfoss is a waterfall on the south part of Iceland, just a few hours down Route 1 from Reykjavik. You probably can’t go for more than twenty minutes on Route 1 without seeing a waterfall, but Seljalandsfoss is particularly spectacular with its large pool, and being able to walk behind it — a huge difference from nearby Skogafoss, which was so powerful that I couldn’t bring my camera close at all.