All visitors to Bhutan must have a visa approved prior to arriving in the kingdom. Those who have not had a visa approved will not be permitted to board their Druk Air flight to Bhutan. Visas are approved and issued upon the prepayment of your said tour. Therefore visitors to Bhutan need to finalize their plans in advance. Upon your tour confirmation, Bhutan Eco tours and Adventure, will make process to issue your visa and complete tour arrangements.