The Restricted Zone is defined by the Mexican Constitution as any land within 50 kilometers (about 31 miles) of the coast or 100 kilometers of an international border. Because the entire Los Cabos region is a narrow peninsula surrounded by the Pacific Ocean and the Sea of Cortez, all real estate here falls within this zone, legally requiring foreign residential buyers to hold their title through a Fideicomiso . Read about the Restricted Zone here: Property Ownership in Mexico