The Algarve is the southernmost region of mainland Portugal. The region coincides with the district of Faro, and has as its administrative centre the town of Faro, where both the region's international airport (Faro/Algarve Airport) and public university (the University of the Algarve) are located. Tourism and related activities are extensive and make up the bulk of the Algarve's summer economy. Fish, seafood and fruit production, which includes oranges, carob beans, figs and almonds, are other important activities in the region. The Algarve is among the most popular tourist destinations in Portugal, its population more than doubles in the peak holiday season thanks to a high influx of visitors.