The Natthagi Valley in Iceland offers an incredible and unique outdoor experience. With its stunning natural beauty, the valley is a hidden gem that is definitely worth a visit. Visitors can take numerous hikes, including a trail to a stunning waterfall, surrounded by steep cliffs, and another to the top of a nearby peak with panoramic views. It's important to bring sturdy walking boots with Vibram soles, as the surface can be slippery. The Gullfoss Waterfall is another must-see destination, although it can get crowded. The Efstidalur II dairy farm is also worth visiting, with an ice cream parlor and a restaurant, among other amenities. Reynisfjara Beach is a stunning black sand beach with dramatic basaltic cliffs and two large rock formations rising out of the ocean. Seljalandsfoss, a popular waterfall that visitors can walk behind, is also a must-visit.