Glymur

Iceland's second tallest waterfall at 198 meters. Getting there is an adventure — cave passage, river crossing, steep climb. Not for everyone, but if you're up for it, the reward is massive.

The hike builds anticipation. Through a cave, across a log bridge over a river, up steep trails — then suddenly the canyon opens and 198 meters of white water drops before you. Earned views are the best views.

Was considered Iceland's tallest until Morsárfoss was discovered in 2007. The canyon it falls into, Botnsdalur, was carved by glacial meltwater over thousands of years. The river is called Botnsá.

The hike takes 3-4 hours round trip. The river crossing is easiest in morning before snowmelt raises water levels. Bring good shoes and don't attempt in bad weather. The cave at the start is short but dark — a flashlight helps.