This region is located at the far east of Nepal under the Sikkim border of India to the east and Tibet to the north. The altitude varies between 1200m and 8586m (Mt. Kanchanjanga) which is the third highest peak in the world. These various climatic zones from subtropical to alpine make it a unique and particularly rich biodiversity.

This region receives good rainfall from May to September which results in a good river system, fueled by snowmelt. The main rivers are Tamor, Gunsa, Simbuwa and Kabeli. The main vegetation of this region consists of: Larix griffithiana, junipers, 46 types of orchids and 137 types of non-wood forest products.

With regard to wildlife we ??can find about 22 species of mammals, including the Himalayan Thars, Musk deer, snow leopards blue sheep and many others.

The main activity of the local population is agriculture and livestock, where there are a few facilities for improving health and education

Duration: 28 days - Altitude max: 5140 m - Season: Spring Autumn - Level of difficulty: Normal sportsman with some difficulties

Day 1.  Katmandou - Biratnagar

Day 2.  Biratnagar - Suketar (2420 m) - Lalikharka (2266 m)
             5 h30 of walk.

Day 3.  Lali Kharka - Kande Bhanjyang (2190 m 6 h of walk.

Day 4.  Kande Bhanjyang - Mamanke (1786m) 6 h30 of walk.

Day 5.  Mamanke - Yamphudin (1692 m) 6 h of walk.

Day 6.  Yamphudin - Chitre (2925 m) 5 h30 of walk.

Day 7.  Chitre - Torongten (2980 m) 6 h30 of walk.

Day 8.  Torongten - Tseram (3868 m) 6 h of walk.

Day 9.  Tseram - Ramche (4433m) 6 h30 of walk.

Day 10. Ramche - Oktang (4740 m) 4 h30 of walk.

Day 11. Oktang - camp de base de Yalung (4840 m) et retour à Oktang               7 h of walk.

Day 12. Oktang - Lapsang  5160m - 6 h30 of walk.

Day 13. Lapsang - Lapsang Bhanjyang (5161 m) Lumba Sumba Kharka               (4210 m) 7 h of walk.

Day 14. Lumba Sumba Kharka - Ghunsa (3415 m) 4 h30 of walk.

Day 15. Day de repos à Ghunsa

Day 16. Ghunsa - Khambachen (4145 m) 7 h of walk.

Day 17. Khambachen - Lhonak (4792 m) 6 h30 of walk.

Day 18. Lhonak - Pangpema (5140 m) 4 h30 of walk.

Day 19. Pangpema - base camp of Kanchanjanga 5100 m then               return to Lhonak. 6h30 of walk.

Day 20. Lhonak - Khambachen - 4150m -  5 h er demie of walk

Day 21. Khambachen - Ghunsa - 3450m - 5 h30 à 6 h of walk.

Day 22. Ghunsa - Gyapla (2725 m)  6 h of walk.

Day 23. Gyapla - Amjilapsa (2498 m) 6 h of walk.

Day 24. Amjilapsa - Lelep (1850 m) 5 h30 of walk.

Day 25. Lelep - Chiruwa (1185 m)  6 h of walk.

Day 26. Chiruwa - Phurambu (1650 m) 6 h of walk.

Day 27. Phurambu - Suketar (2420 m)

Day 28. Suketar -flight to Biratnagar and then to Kathmandu