Þakgil, known as the "Roof Canyon," it's like an oasis with lush green valleys and spiky mountains covered in velvety moss. It's a hiking paradise with a option of staying in the camping site which even has a cozy dining area inside a cave. It's a mystical and serene spot that feels like a secret hideaway in nature.
Gravel road leading there is pretty rough but you can get there even with 2wd vehicle
One day is enough but you can easily spend there 2-3 days if you want to hike all the trails