Provincial Aconcagua Park, located in Mendoza, Argentina, is a world-renowned destination for mountaineering and high-altitude trekking, home to Mount Aconcagua, the highest peak outside the Himalayas. The park is generally accessible by car from Mendoza city, though inner park access and trails vary greatly in difficulty, with limited accessibility for those with mobility impairments. While short day hikes near the Horcones entrance can be done solo (with a required permit), multi-day treks or summit attempts necessitate guided expeditions for safety due to extreme conditions and altitude risks. The primary season for visits is typically from November to March/April, outside of which the park is largely inaccessible due to harsh winter weather. Costs vary significantly, from around $10-20 USD for basic day permits to thousands for foreign summit permits and guided expeditions. Typical visit durations range from a few hours for a scenic stop to 15-20 days for a full summit attempt. Visitors must prioritize acclimatization, carry appropriate gear for rapidly changing weather, and secure permits and guides well in advance.