Travel and tourism represents an important economic activity and development vehicle for Cuba and is the nation’s growth industry. Politics and economics have played a significant role in the island’s tourism policies, development, growth, decline, and revival. The industry generates over two million visitors annually and contributes over 2.5% of the nation’s gross domestic product (GDP). The island possesses an abundance of tourism resources including a warm, tropical climate; over 3,735 kilometers (2,321 mi) of coastline with pristine beaches; protected marine parks; colonial architecture; a diverse and distinct culture; a well-established arts and entertainment industry; a rich history; the mystique and intrigue of having been a “closed” country for over 50 years; and adequate and constantly developing tourism infrastructure.