New York City is located on the north-east coast of the United States, at the mouth of the Hudson river, and brings together some fifty islands. It is divided into 5 main boroughs: Manhattan, the Bronx, Brooklyn, Staten Island and Queens. The region's climate is characterised by marked seasons: hot, humid summers sometimes lasting until the start of winter ("Indian summers"), sometimes very cold and often snowy winters, and 2 fairly changeable in-between seasons, autumn sometimes being eclipsed by the Indian summer and spring more or less long but generally less hot than summer.