Valle de la Luna (Valley of the Moon) near San Pedro de Atacama, Chile, is renowned for its otherworldly, lunar-like landscape, featuring dramatic rock formations, sand dunes, and salt flats. Accessibility can be challenging with uneven terrain, so consider appropriate footwear; while solo exploration is possible with your own transportation, guided tours are highly recommended for a richer understanding of the geology and history. The best time to visit is during the shoulder seasons (spring or fall) for more moderate temperatures, as the desert climate brings extreme heat in the summer and cold nights in the winter. Expect to spend approximately half a day to a full day exploring the valley, with costs varying depending on whether you opt for a tour or self-guided visit, but generally budget around $20-$80 USD. Sunset views are particularly spectacular and popular.