Interval International is a vacation exchange network that allows members to trade their timeshare accommodations for stays at other resorts around the world. Founded in 1976, it provides access to thousands of properties in various destinations, making it easier for travelers to explore new locations. Members can exchange their timeshare weeks for different timeshare weeks or points, which can be used for various vacation options. Interval International also offers additional services, such as travel planning and discounts on travel-related expenses, enhancing the overall vacation experience for its users.