Downtown Tijuana, officially Colonia Zona Centro, is an official neighborhood of Tijuana, Mexico. It is located within the Central Borough of the city, which is immediately southwest of the San Ysidro Port of Entry. It is bordered by Calle Artículo 123 and the Zona Norte neighborhood on the north, by Calle Ocampo and Zona Este and Zona Río on the east…Downtown Tijuana, officially Colonia Zona Centro, is an official neighborhood of Tijuana, Mexico. It is located within the Central Borough of the city, which is immediately southwest of the San Ysidro Port of Entry. It is bordered by Calle Artículo 123 and the Zona Norte neighborhood on the north, by Calle Ocampo and Zona Este and Zona Río on the east, and by the colonias Castillo, Lindavista, Altamira, Independencia, Morelos, and Juárez on the west and south. Avenida Revolución is the main tourist thoroughfare while Avenida Constitución is a main traditional shopping thoroughfare.