Valle de Marte, also known as Death Valley, is a surreal desert landscape near San Pedro de Atacama, Chile, characterized by its otherworldly rock formations, sand dunes, and salt deposits. Accessibility can be challenging due to the rugged terrain; consider a guided tour for easier navigation and richer context. Solo exploration is possible for experienced hikers with proper preparation. Seasonal restrictions are minimal, but the extreme heat during the summer months (December-February) requires caution, with cooler temperatures making shoulder seasons ideal. Expect to spend approximately $20-$50 USD for a guided tour or park entrance fees. A typical visit lasts around 3-4 hours, encompassing hiking and photography opportunities. Note that altitude sickness can be a factor; acclimatize before engaging in strenuous activities.