Puerto Peñasco (O'odham: Geʼe Ṣuidagĭ) is a small city located in Puerto Peñasco Municipality in the northwest of the Mexican state of Sonora, 100 kilometres (62 mi) from the border with the U.S. state of Arizona. According to the 2020 census, it has a population of 62,689 inhabitants. It is located on the northern shores of the Sea of Cortez on the small strip of land that joins the Baja California Peninsula with the rest of Mexico. The area is part of the Altar Desert, one of the driest and hottest areas of the larger Sonoran Desert.Since the late 1990s, there has been a push to develop the area for tourism. It is now one of the most important tourist destinations in northern Mexico. Puerto Peñasco is often called "Rocky Point" in English, and has been nicknamed "Arizona’s Beach" as it is the closest beach to cities such as Phoenix and Tucson.