Trabuco Hills High School

Etnies Skatepark of Lake Forest (stylized as etnies Skatepark) is a public skatepark located in Lake Forest, California, United States. It is the largest free skatepark in the state, with an area of over 62,000 square feet (5,800 m2). The skatepark is owned and operated by the City of Lake Forest. The skatepark provides free identification cards for residents of Lake Forest and Foothill Ranch, while a $15 fee is required for non-residents in exchange for the identification card. Helmets, knee and elbow pads are required for all users. Spectators, with the exception of permitted photographers, are not allowed inside the park.

Lake Mission Viejo is a reservoir created for recreation in Mission Viejo, Orange County, California. The reservoir is formed by an earthfill dam across the canyon of Oso Creek, which is part of the Trabuco Creek and San Juan Creek drainage basin. The lake is not fed by urban runoff; it is maintained so as to be safe for contact. The Lake Association owns and operates the Lake facilities which include approximately 124 surface acres of water and 50 acres of land, including Playa del Norte (North Beach) and Marina, Playa del Este (East Beach), parking facilities, Market on the Lake Dock and dam. Recreational facilities available for Lake Association members include the Lake, two large beaches and picnic areas, clubhouse rental, boat launching facility and shoreline fishing area. The Lake Mission Viejo Association, is a California Non-Profit corporation consisting of those residential property owners within the ultimate boundaries of the Mission Viejo planned community. Association members have access to the Lake through the guard gates at both North and East beach. Other portions of the shoreline have been developed as private residential projects and commercial village (Market on the Lake). Smaller private beach facilities around the Lake are for the exclusive use of waterfront homeowners. Costs and operations of any private facilities for lakefront developments will be paid for and are the responsibility of that lakefront owner. Other amenities include, Fishing, recreation (boating and swimming) as well as Concerts, Movie Nights and Summer Camps during the summer months. Lake Mission Viejo is a private recreational facility/ HOA that is for the use and enjoyment of members that own or live in Lake Member Properties within the city of Mission Viejo.About 5 miles (8.0 km) south of Santiago Peak, a peak in the Santa Ana Mountains, the lake is surrounded by private residential (single-family and condominium) communities, and is a private membership for Mission Viejo residents. The primary marina is located in the northwestern arm of the lake. Upstream of Lake Mission Viejo is Upper Oso Reservoir, which spills downstream and into Mission Viejo in wet years.

Portola Hills is a district in the city of Lake Forest, California in Orange County, United States. It was formerly an unincorporated community and census-designated place before it was annexed into Lake Forest in 2000. The population was 6,391 at the 2000 census. Portola Hills lies near Whiting Ranch Wilderness Park and Cleveland National Forest. Foothill Ranch is to the west, Rancho Santa Margarita in the southeast, Mission Viejo in the south, and the unincorporated regions of Silverado and Santiago Canyon to the north and northeast.

Foothill Ranch is a master planned community in Orange County, California, United States. The population was 10,899 at the 2000 census. Foothill Ranch was incorporated into the city of Lake Forest, California, in 2000. Prior to that, it was a census-designated place. Foothill Ranch is notable for companies such as Oakley, Inc., Nike, Kaiser Aluminum, Kawasaki, Hampton Products/Brinks, TAE Technologies, Viking Technology, Image Options and ProBoards. It is also the home of Saddleback Church.

The José Serrano Adobe is a historic 1863 adobe house in Lake Forest, Orange County, California. The property is one of four historic buildings in the Heritage Hill Historic Park. It was listed on the National Register of Historic Places on May 24, 1976.

The Actors Workshop is one of southern California's oldest film acting programs and is generally associated with the Sanford Meisner and Charles Conrad techniques. The company was established by its parent company, Shannon & Company.

Saddleback Valley refers to the flat and foothill areas west-southwest of the Saddleback mountain peak of the Santa Ana Mountains and east-northeast of the hilly Crystal Cove State Park in South Orange County, California. The region primarily encompasses the cities of Mission Viejo, Lake Forest, and Rancho Santa Margarita, as well as the communities of Coto de Caza and Ladera Ranch. The cities of Aliso Viejo, Laguna Woods, Laguna Hills, and Laguna Niguel, as well as some of Orange County's eastern canyon communities, partially reside within the valley. The southeastern portion of Irvine also encroaches upon the area, but the two are not typically associated with each other. The cityscape within Saddleback Valley is suburban, a remote reach of the Los Angeles Metropolitan Area. The area is recently developed and on the outskirts of the Southern California megalopolis, so wildlife sightings are more common. Snakes, coyotes, and mountain lions have long inhabited the area. Mountain lion attacks on people have happened in the outlying wilderness parks of Saddleback Valley, but they are very rare.

Rancho Cañada de los Alisos was a 10,668-acre (43.17 km2) Mexican land grant in present-day Orange County, California given by Governor Juan Bautista Alvarado to Jose Antonio Fernando Serrano in 1842, and enlarged by a second grant by Pio Pico in 1846. The name means "Glen of the Alders" in Spanish, after the native White Alder (Alnus rhombifolia) trees growing there. The rancho included the present day cities of Lake Forest (formerly El Toro), and the Marine Corps Air Station El Toro—Orange County Great Park site in Irvine.

El Toro High School is a public high school in Lake Forest, California, United States. It is one of five high schools in the Saddleback Valley Unified School District (SVUSD) and serves Lake Forest and its district of Portola Hills and a small portion of east Irvine. "El Toro" was the name of the community from the 1870s until a referendum in 1991. The school has served the area since 1973. The current principal of the school is Terri Gusiff.

Lake Forest is a city in Orange County, California. The population was 85,858 at the 2020 census. Lake Forest incorporated as a city on December 20, 1991. Prior to incorporation, the community had been known as El Toro. Following a vote in 2000, Lake Forest expanded its city limits to include the master-planned developments of Foothill Ranch and Portola Hills. This expansion brought new homes and commercial centers to the northeastern boundary of the city. Lake Forest has two lakes from which the city gets its name. The lakes are man-made, and condominiums and custom homes ranging from large to small line their shores. Neighborhood associations manage the lakes (Lake 1, known as the Lake Forest Beach and Tennis Club, and Lake 2, the Sun and Sail Club.) Each facility features tennis courts, gyms, basketball courts, barbecue pits, volleyball courts, multiple swimming pools, saunas, hot tubs and club houses for social events. The "forest" for which the city is also named lies in the area between Ridge Route, Jeronimo, Lake Forest and Serrano roads, and consists mostly of Eucalyptus trees. It is also man-made, and was created in the first decade of the 1900s when a local landowner, Dwight Whiting, planted 400 acres (1.6 km2) of Eucalyptus groves in the vicinity of Serrano Creek as part of a lumber operation intended to draw development to the area. In the late 1960s, the Occidental Petroleum company developed a residential community in and around the Eucalyptus groves, which had long since expanded and grown much more dense.

Cook's Corner is an Orange County, California bar built in 1884 that is popular with motorcyclists. It is located between the city of Lake Forest and the unincorporated community of Silverado. Cook's Corner is situated at the intersection of Santiago Canyon and Trabuco Canyon.

On August 23, 2023, a mass shooting occurred at the Cook's Corner bar in Trabuco Canyon, California, United States. Three people were killed and six others wounded before the gunman, 59-year-old ex-Ventura police officer John Snowling, was shot and killed by responding police officers.