Dzongu is a triangular region in North Sikkim. It is bounded by the Teesta River in the south-east, Tholung Chu River in the north-east and by mighty mountains in the west. It borders the Kangchenjunga Biosphere Reserve.

Dzongu has been established as an official reserve for the Lepcha people, the aborginal inhabitabts of Sikkim. The Lepchas have strong ties with the nature and have lived here for centuries. An understanding of their culture, customs and language helps to foster an appreciation of the beautiful mountains, deep forests, and the emerald-colored Teesta River.

The region sees little tourist activity and hence seems almost untouched. It is sparsely populated and most of it is covered with dense vegetation. Rice fields and Cardamom plantations can be seen near the villages.

See

Lingthem - A short but steep hike up from Passingdang village. Great views of Mt. Kangchenjunga and Dzongu Valley.

Hee Gyathang - Is in Lower Dzongu. It has a small lake, considered to be sacred by the Lepchas.

Pentong - Reachable after a trek. Quite close to snow-capped mountains.

Tholung Monastery - 20 Km from Passingdang. Every three years, Tholung treasures are put on display. It has a cane bridge one can try to cross - excellent experience!

Traditional Lepcha House Museum - A model of the Lepcha house built in the traditional style. Houses a museum inside it. Located in Namprikdang, near the confluence of Teesta and Rongyung Chu Rivers. Surrounding area provides great opportunities for Butterfly watching.

Waterfalls - Dzongu is full of waterfalls. They can be seen cascading down from every second hill. Lingzya falls is the best among them. Try a bath here!

Tingvong & Kusong - Two beautiful villages, a short hike apart.

Keushong - Reach here after backpacking for 3-4 days. The most pristine place in Dzongu probably. This place has a very beautiful lake and hills all around it. The valley is covered with flowers in the right season.