Skútafoss is a hidden gem of a waterfall in Iceland, tucked away in the Þorgeirsstaðadalur valley. It's not as well-known as some of the other waterfalls in the country, but it's definitely worth a visit. There's also a small cave so you can sort of walk behind the waterfall, too. Just be prepared for a bit of a bumpy ride to get there, as the road can be rough for smaller cars at some places.