The Valley of the Moon (Valle de la Luna) near San Pedro de Atacama, Chile, is a surreal desert landscape of sand dunes, rock formations, and salt caves sculpted by wind and water over millennia. The valley is generally accessible, but some areas may present challenges for individuals with mobility issues. While solo exploration is possible with your own transportation, guided tours are recommended to fully appreciate the geological features and learn about the area's history. Seasonal restrictions are minimal due to the desert climate, though summer (December-February) can bring intense heat. The cost varies depending on the tour operator and inclusions, but expect to pay around $20-$50 USD for a half-day excursion. A typical visit lasts approximately 3-4 hours, often timed to coincide with sunset for spectacular views. Remember to bring water, sunscreen, and a hat due to the intense sun and arid conditions.