San Martín is a city located in the province of Buenos Aires, Argentina. It is part of the Greater Buenos Aires metropolitan area and serves as an important residential and commercial hub. The city is known for its parks, schools, and various public services that cater to its population. The city was founded in 1864 and named after the national hero, José de San Martín, who played a crucial role in Argentina's independence. San Martín has a diverse community and offers various cultural and recreational activities, making it a vibrant place to live and visit.