Your Nepal visa is conveniently purchased by you upon arrival at the Kathmandu airport. It is not necessary to purchase a Nepalese visa prior to landing in Nepal. In 2008, the cost of a 60 day visa was $40 USD. We recommend getting a 60 day double-entry Nepal visa upon arrival at the airport in Kathmandu instead of the normal single entry visa. When reentering Nepal upon your return from Tibet at the end of the trip you won't have to purchase a new visa. Please bring cash and 2 extra passport-sized photos (extra photos are necessary to obtain the visa in the airport).
Because the expedition is in Tibet, we provide special support to you in Kathmandu in organizing your Tibet-China visa. Be ready to pay up to $220 USD (US citizens) and $135 USD (non-US citizens) for your Tibetan visa. It may be cheaper, but we will tell you and provide a receipt. Thank you.