If you book our Group Trek, we will match you with a roommate of the same gender and will give you a free single room if we cannot find one for you. If you are traveling solo, you are never required to pay a "single supplement." However, you may request and pay extra to have a room to yourself. If you are on a Private Trek, we will place you two or three to a room. If you require your own room you can choose to pay for a single supplement.