BHUTAN TOUR AGENCY

It is an extra payment that you have to pay if you are traveling in a group less than three people. Surcharge helps the government and the Travel agent to cover up the Transportation and standard hotel expenses. Hence, for group of two people, USD 30/- charge per Person per Night while for one Person, the USD 40/- per Person per Night is charged.

http://www.tourism.gov.bt/about-bhutan/surcharges