San Antonio Del Mar is one of the oldest and best known single-family home communities in the Rosarito area. Actually, it is on the far southwest side of the city limits of Tijuana but most of the residents gravitate toward Rosarito for shopping and entertainment rather than the bigger city. Only 13 miles south of the U.S. border, it lies along 3 kilometers (or 1.8 miles) of the Pacific ocean and contains 900 homes.