A tourist is generally defined by the UN World Tourism Organization (UNWTO) as a person traveling to and staying in places outside their usual environment for more than 24 hours but less than one year. The primary motivation must be for leisure, business, or other purposes not related to the exercise of an activity remunerated from within the place visited. Philosophically, a tourist is often distinguished from a "traveler" by their relationship with the destination; a tourist often follows established paths, stays in hotels, and visits "must-see" landmarks. However, the technical definition relies on the duration and purpose of the stay. If you are there for less than 24 hours, you are an "excursionist" or "day-tripper." The key factor is the "usual environment"—if you are crossing a border or traveling to a significantly different geographic region for non-work-related exploration, you are officially a tourist.