Bhote koshi is the main branch of the Sun koshi and it has been descended by kayak from near the Tibetan border at Kodari. The river is followed by the Araniko Highway from Kathmandu to Lhasa, so access and scouting are relatively easy. The upper valley above Barhabise is impressively narrow with steep hill sides shooting up over 2000 m from the river, and there are some dramatic and scenic gorges down at river level. Just to drive up the highway and look at the river is like reading an erotic novel – it quickens the blood and excites and mind!
Technically, the Bhote koshi ends just after Bahrabise where the Sun koshi joins as a stream from the left: we have taken our description down to the dam at Lamasangu as this is the usual run. There is a new hydro scheme near Kodari and proposals for other schemes that if implemented at some time in the future, will mean that almost all of the river will be diverted.