Glymur Waterfall in Iceland is a must-see for hikers looking for a fun adventure. At 198 meters tall, it's the second tallest waterfall in Iceland and offers stunning views along the way. The hike includes a cave walk, river crossings, and breathtaking scenery. Make sure to get there early to beat the crowds and be prepared for some wet feet if you choose to cross the river barefoot. Overall, it's a moderate hike that's worth the effort for the amazing views of Glymur Waterfall.