Temecula (; Spanish: Temécula, [te'mekula]) is a city in southwestern Riverside County, California, United States. The city is a tourist and resort destination, with the Temecula Valley Wine Country, Old Town Temecula, the Temecula Valley Balloon & Wine Festival, the Temecula Valley International Film Festival, championship golf courses, and resort accommodations for tourists which contribute to the city's economic profile. Although Temecula is geographically closer to downtown San Diego than downtown Los Angeles, it is considered part of the Greater Los Angeles area. The city of Temecula, forming the southwestern anchor of the Inland Empire region, is approximately 58 miles (93 km) north of downtown San Diego and 85 miles (137 km) southeast of downtown Los Angeles. Temecula is bordered by the city of Murrieta to the north and the Pechanga Indian Reservation and San Diego County to the south. With a population of 110,003 during the 2020 census, Temecula is the 5th most populous city in Riverside County. It was incorporated on December 1, 1989.

Riverside is a city in, and the county seat of, Riverside County, California, United States, located in the Inland Empire metropolitan area. It is named for its location beside the Santa Ana River. It is the most populous city in the Inland Empire and in Riverside County, and is located about 50 miles (80 km) east of downtown Los Angeles. It is also part of the Greater Los Angeles area. Riverside is the 58th most populous city in the United States and 12th most populous city in California. As of the 2010 Census, Riverside had a population of 303,871. Riverside was founded in the early 1870s. It is the birthplace of the California citrus industry and home of the Mission Inn, the largest Mission Revival Style building in the United States. It is also home to the Riverside National Cemetery. The University of California, Riverside, is located in the northeastern part of the city. The university also hosts the Riverside Sports Complex. Other attractions in Riverside include the Fox Performing Arts Center, Museum of Riverside, which houses exhibits and artifacts of local history, the California Museum of Photography, the California Citrus State Historic Park, Castle Park, and the Parent Washington Navel Orange Tree, the last of the two original navel orange trees in California.

Laguna Beach () is a seaside resort city located in southern Orange County, California, in the United States. It is known for a mild year-round climate, scenic coves, environmental preservation, and an artist community. The population in the 2010 census was 22,723. Per the population estimate in July 2019, the total population of Laguna Beach city was 22,827.Historically settled by Paleoindians, the Tongva people, and then Mexico, the location became part of the United States following the Mexican–American War. Laguna Beach was settled in the 1870s and officially founded in 1887, and in 1927 its current government was incorporated as a city. In 1944, the city adopted a council-manager form for its government. The city has remained relatively isolated from urban encroachment by its surrounding hills, limited highway access, and a dedicated greenbelt. The Laguna Beach coastline is protected by 5.88 miles (9.46 km) of state marine reserve and an additional 1.21 miles (1.95 km) of state conservation area.Tourism is the primary industry with an estimated six million people visiting the community annually. Annual large events include the Pageant of the Masters, Festival of Arts, Sawdust Art Festival, Art-A-Fair, Bluewater Music Festival, and Kelpfest.

Irvine () is a master-planned city in Orange County, California, United States in the Los Angeles metropolitan area. The Irvine Company started developing the area in the 1960s and the city was formally incorporated on December 28, 1971. The 66-square-mile (170 km2) city had a population of 307,670 as of the 2020 census. A number of corporations, particularly in the technology and semiconductor sectors, have their national or international headquarters in Irvine. Irvine is also home to several higher education institutions including the University of California, Irvine (UCI), Concordia University, Irvine Valley College, the Orange County Center of the University of Southern California (USC), and campuses of California State University Fullerton (CSUF), University of La Verne, and Pepperdine University.