Illimani, the second highest mountain in Bolivia, is a major draw for experienced mountaineers. Climbing Illimani is a challenging and technical ascent, generally requiring a guided tour due to its complex glacial terrain and unpredictable weather conditions. Solo ascents are strongly discouraged. The climbing season typically runs from May to September, coinciding with the drier months. Expect costs to be significant, covering permits, guides, porters, and equipment rentals, easily reaching several hundred to over a thousand US dollars depending on the package. A typical climb takes 3-5 days. Accessibility to the base camps requires 4x4 vehicles and acclimatization is essential before attempting the summit. Due to the rugged and remote nature of the mountain, accessibility for individuals with mobility issues is extremely limited.