Other than Indian, Bangladeshis and Maldivian nationals, all visitors to Bhutan require a visa; all visas are issued from Thimphu; visas are only issued to tourists booked with a local licensed tour operator, directly or through a foreign travel agent. Applications for tourist visas are submitted by the tour operator. Visa clearance from Thimphu must be obtained before coming to Bhutan. Visa clearance takes at least 10 days to process. Air tickets to Bhutan cannot be purchased without visa clearance. At your point of entry the visa will be stamped in your passport on payment of US$20, two passport photos will also be required. Visas are issued for a 15day period; extensions can be obtained in Thimphu at a cost of Nu.510.