Solo travelers are prohibited to enter Bhutan in the sense that they will not be allowed to travel independently without a guide or a driver. This is mainly only for the nationals of India, Bangladesh, and Maldives. Solo travelers from other countries are allowed to visit Bhutan when they book a package with a tour operator and travel places along with a licensed tour guide. It is true that Bhutan highly discourages solo travelers to independently roam around the country. One of the main reasons for this deterrent is because of the rise in illegal migrants from India. As a solo traveler, you will have to pay an extra surcharge of $40 per day in addition to the regular fee.