San Fernando, officially the City of San Fernando, is the second most populous municipality in Trinidad and Tobago, after Chaguanas and the most populous city. It occupies 19 km² and is located in the southwestern part of the island of Trinidad. It is bounded to the north by the Guaracara River, the south by the Oropouche River, the east by the Sir Solomon Hochoy Highway, and the west by the Gulf of Paria. The former borough was elevated to the status of a city corporation on 18 November 1989. The motto of San Fernando is: "Sanitas Fortis" - In a Healthy Environment We Will Find Strength. Many local Trinidadians refer to the city with the shortened name "Sando." San Fernando is called Trinidad and Tobago's "industrial capital" because of its proximity to the Pointe-à-Pierre oil refinery and many other petrochemical, LNG, iron and steel and aluminium smelters in places such as Point Lisas in Couva, Point Fortin, and La Brea.