Neora Valley National Park covers an area of 88 km2 (34 sq mi) with an elevation of 183–3,200 m (600–10,499 ft).[3] The highest point is Rachela Danda. The forest in Neora Valley has such luxurious growth that even sunlight finds it difficult to touch the ground. Much of the park is still inaccessible, making it an adventurous place for the nature lovers/trekkers who can take the challenge to explore the still-unknown terrain in the Kalimpong district hills. Virgin natural forests, dense bamboo groves, colourful canopy of Rhododendron trees, lush green valley, meandering rivers and streams with snowcapped mountains in the backdrop form a picturesque landscape. It borders Pakyong District and Samtse Bhutan.[citation needed] The Neora River is the major water source for Kalimpong town