West Africa's Ivory Coast is blessed with an inviting tropical climate. Agriculture including cocoa and coffee production have helped the economy until recently. The country experienced an economic crisis in the 1980's. French is the official language, although many of the local languages are widely used. The main attractions on the Ivory Coast are national parks. Tai National Park is one of the few remaining areas of primary rainforest in West Africa and has been a World Heritage Site since 1982. The Mount Nimba Strict Nature Reserve is both a national park and World Heritage Site, containing most of Mount Nimba and over 200 species unique to the area.