Rosarito Beach (Spanish: Playas de Rosarito), is a coastal resort city in the Mexican state of Baja California located approximately 35 minutes south of the U.S. border in Rosarito Beach Municipality. Its beaches and dance clubs are a popular destination for young people from the United States during the Memorial Day and Labor Day weekends. Rosarito Beach is the seat of the municipality of Rosarito Beach. The city is the second largest in the Tijuana metropolitan area and southern beach city of the San Diego–Tijuana international metropolitan region. Additionally, it is the westernmost municipal seat in Mexico, slightly further west than neighboring Tijuana, which lies inland to its north-northeast.

Evidence of the presence of Paleo-Indians in the region has been dated as early as 2,000 B.C. By 1,000 B.C., a group emerged that is recognizable as the Yuman ancestors of the Kumeyaay, who continued to inhabit the northern portion of the Baja California Peninsula at the time of European contact.[1] The Kumeyaay referred to the area now known as Rosarito Beach as Wa-cuatay, which translates to "big houses" in the Kumeyaay language.