Nabji Korphu Trek
Alternative itineraries:
-Turning the itinerary around: Start in Tongtongfey, and finish in Riotala.
-Spending the night in Korphu: instead of going to Nabji on the 2nd day, you could go up to Korphu and spend a night in Korphu village.
-On day 3 you could go down to Nabji and stay there for one night to continue to Kubdra on Day 4.