If you are traveling as a tourist, you will only need a regular tourist visa for Chile (based on your nationality). However, for climbs in the border regions (like Ojos del Salado), we must handle special border permits. This permission is part of the logistics that we will do for the expedition, so once you send us your information during the booking process, we will have all the data needed to manage it directly with DIFROL (The National Department of State Borders and Boundaries).