It is connected to Neora Valley National Park of Kalimpong district of North Bengal via thick forest cover in Aritar Mulkharka Rachela region.

Sumin Reserve Forest and Saramsa Garden also lies in Pakyong District which is rich in varieties of floral plants and fauna.

[7] Forest Department, Government of Sikkim has also confirmed the presence of Royal Bengal Tiger in the Pangolakha Wildlife Sanctuary of Pakyong District in January 2019.

Rangpo River the third largest river of Sikkim originates from Lake Menmecho at Rongli Subdivision of Pakyong District and flows through Pakyong Subdivision and Rongli Subdivision villages and towns of Pakyong District before meeting river Teesta at Rangpo Town.

River Jaldhaka which originates near Dzuluk in Pakyong District and flows towards Bhutan, West Bengal and Bangladesh.