Puerto Peñasco or Rocky Point is a city and municipality located in the northwest of the state of Sonora about 100 km from the Arizona border. It is located on the small strip of land that joins the peninsula of Baja California with the rest of Mexico.

This area had no permanent settlements until the 1920s. In the 1930s and 1940s, the construction of a rail line connecting Baja to the rest of Mexico passed through here and allowed for the development of a permanent town.

For most of its history, the area has been associated with fishing, which is still a major source of income. However, since the 1990s, there has been a push to develop the area for tourism, as it is already heavily visited by people from Arizona and California.

Puerto Peñasco, called “Rocky Point” in English, has been nicknamed “Arizona’s beach” as the cities of Phoenix and Tucson are closer to it than Mexicali or Hermosillo, and many Arizonans spend weekends here.