Landmannahellir in Landmannaafréttur is a popular spot for hikers and riders, known for its cave that provided shelter for people and horses for centuries. It's a great place to stop during the summer, with a campsite available for visitors. The area is managed by Hellismenn ehf, and there are hiking trails like Hellismannaleið that pass through the location. To reach the cave, you'll need to take road F225, which is about 80 km long from Landvegamót to Landmannahellir.