With a cascade of 196m, this waterfall is the highest in Iceland. Situated at the rear end of the Hvalfjörður, it falls down alongside the volcano Hvalfell, and makes up part of the route of the river Botnsá. This sight is relatively untouched by tourism nowadays due to the new ring road that bypasses the area, yet the volcanoes and tree plantations in the region make it a highly attractive location.

Hiking is the main activity here; a round trip from the car park down in the small village of Botnsá up to Glymur will take around three to four hours. The main hike is around 350 metres on a marked path. For the more experienced hikers there is a trail following the south side, which will provide better views but is more hazardous – take care when walking along unstable edges here. Normal hiking essentials such as boots and plenty of water will be required for this walk, and don’t forget to take a camera to capture those gorgeous panoramic views.