Suriname is one of the smallest countries in South America, yet its population is one of the most ethnically diverse in the region. The southern four-fifths of the country is almost entirely covered with pristine tropical rainforest. The capital and largest city, Paramaribo, lies 9 miles (15 km) from the Atlantic Ocean on the Suriname River. Paramaribo is the business and financial center of Suriname. Even though the capital city does not produce significant goods itself, almost all revenues from the country's main export products gold, oil, bauxite, rice, and tropical wood are channeled through its institutions. All banks, insurance corporations and other financial and commercial companies are headquartered in Paramaribo. Around 75 percent of Suriname's GDP is consumed in Paramaribo. Tourism is an increasingly important sector, with most visitors coming from the Netherlands.