When climbing authorization was liberalized in 1970, Yalung Kang 8586 meters, the westernmost peak in this group, was included. At the same time, parts of the western edge at Kambachen 7902 meters and Jannu 7710 meters of elevation to its south were also made accessible. It can be seen therefore that after 1970, the available trekking areas in this sector must have been considerably enlarged. For access to this mountain region, if the air ticket is made out to Biratnagar and the flight ends in Calcutta, the traveler should both insist on being delivered to his ultimate destination and should remind the official that since his flight should have begun and ended in Nepal, customs inspection by the government of India is unnecessary. By bus from Kathmandu, one should head south for Birgunj, then transfer to a bus running east to Biratnagar and north till the starting point of Kanchenjunga Base Camp Trek, aka KBC Trek.
This trip should take about two days from Kathmandu by any means. Lodgings at Nepalese-style hotels in places like Birganj or Janakpur should be reasonably comfortable. In fact, it may be something of a treat to sleep in bed under mosquito netting. Both the Tamur and Arun rivers contain numerous fragments of such materials as tourmaline and garnet, whose sands tinge the floodplain dark red, the color of beefsteak plant (perilla frutescenes crispal). Views from the ridges around Dhankuta or Taplejung to its northwest are excellent, but some may have only enough available time to see these and return. Those with more leisure, however, may feel adventurous enough to enter the little-visited Lumba Samba Mountain group to the north.