Juan Santamaría International Airport in the context of Copa Airlines

San José (Spanish: [saŋ xoˈse]; meaning "Saint Joseph") is the capital and largest city of Costa Rica, and the capital of San José Province. It is in the center of the country, in the mid-west of the Central Valley, within San José canton. San José is Costa Rica's seat of national government, focal point of political and economic activity, and major transportation hub. San José is simultaneously one of Costa Rica's cantons, with its municipal land area covering 44.62 square kilometers (17.23 square miles) and having within it an estimated population of 352,381 people in 2022. Together with several other cantons of the central valley, including Alajuela, Heredia and Cartago, it forms the country's Greater Metropolitan Area, with an estimated population of over 2 million in 2017. The city is named in honor of Joseph of Nazareth.

Founded in 1736 by order of Cabildo de León, the population of San José rose during the 18th century through the use of colonial planning. It has historically been a city of strategic importance, having been the capital of Costa Rica three times. More than a million people pass through it daily. It is home to the Museo Nacional de Costa Rica, the National Theatre of Costa Rica, and La Sabana Metropolitan Park. Juan Santamaría International Airport serves the city.

Alajuela (Spanish pronunciation: [alaˈxwela]) is a district in the Alajuela canton of the Alajuela Province of Costa Rica. As the seat of the Municipality of Alajuela canton, it is awarded the status of city. By virtue of being the city of the first canton of the province, it is also the capital of the Province of Alajuela.

Because of its location in the Costa Rican Central Valley, Alajuela is nowadays part of the conurbation of the Greater Metropolitan Area. The city is the birthplace of Juan Santamaría, the national hero of Costa Rica and the figure who gives the name to the country's main international airport, which is south of Alajuela downtown.

Turrialba Volcano National Park, or in Spanish the Parque Nacional Volcan Turrialba is a national park in the Central Conservation Area of Costa Rica that encompasses the area around the Turrialba Volcano in Cartago Province.

Major eruptions in the past have occurred in the years between 1864 and 1868. Volcanism increased in the park starting in 2014 and has featured ash clouds that have repeatedly impacted portions of Costa Rica with deposits of gritty soot and caused temporary closures of Juan Santamaría International Airport in the capital city of San Jose.