[5][7] The Khecheopalri Lake and the Khangchendzonga National Park are conserved from the biodiversity perspective with ecotourism and pilgrimage as essential offshoots.
[2][10] Another folk legend narrated (a plaque erected at the entrance to the lake by the Department of Ecclesiastical Affairs, Government of Sikkim gives some details of the legend[11]) is that long time back this place used to be a grazing ground, troubled by nettle (the native original tribal population make use of the barks of nettle for multipurpose uses).
Then, on a particular day, a Lepcha couple were peeling off the bark of the nettle when they saw a pair of conch shells falling from air on the ground.
Based on the sacred Nesol text, the lake was interpreted as the abode of "Tshomen Gyalmo or chief protective nymph of the Dharma as blessed by Goddess Tara".
[2] The lake is situated amidst pristine forest at an altitude of 1,700 metres (5,600 ft) near Tsozo village.
In addition, during the monsoon season two streams are also diverted temporarily into the lake to supplement its storage capacity.
The geological setting in the lake and its surrounding hills consist of granite gneiss, schist and phyllites.
[3] The fish species recorded in the lake are: Cyprinus carpio, Danio aequipinnatus, Garra sp., Schistura sp.
[1] The avifauna recorded in the lake, particularly in the festive season when they gather in the early hours of the morning (dispersed with human presence) at the middle of the lake are: grebe (Podiceps ruficollis), common merganser– Mergus merganser, large cormorant (phalacrocorax carbo), little cormorant (microcarbo niger), common teal (Anascrecca), tufted duck (Aythya fuligula), White-breasted waterhen (Amaurornis phoenicurus), moorhen (gallimlachorophy) and crane brown Amaurornisbi colour.
[2] Khecheopalri Lake and the Khangchendzonga National Park (KNP), which are visited by tourists and trekkers on the Yuksom-Dzongri-GoechhaLa trekking corridor (45 kilometres (28 mi) long trek) have caused concerns of environmental deterioration in the region.
The study was carried out by gathering interactive information from tourists who visit the lake throughout the year (both national and international) and local community on their perceptions for conservation and tourism.
This study has established that monetary values need to be attributed to conservation of the site for biodiversity and pilgrimage through regulated ecotourism.
[2][9] Thus, ecotourism, promoted with the involvement of local communities, could not only provide economic benefits but also control further deterioration of biodiversity in the Khecheopalri Lake surroundings as well as in the Yuksom-Dzongri-Goechha La Corridor.
The monks of Khecheopalri Monastery and the surrounding areas dedicate several ceremonies to the lake each year, along with animistic priests.
The folk lore has generated deep religious interest and as a result lake's waters are permitted to be used only for performing rites and rituals.
Consequently, a religious fair, one of the largest festivals, is held here every year for two days in Maghe purne (March/April), which is attended by a large number of pilgrims from all parts of Sikkim, Bhutan, Nepal and India.
[9] During this festival, pilgrims float butter lamps in the lake on bamboo boats tied with khadas (scared scarves), in the evenings chanting prayers as mark of reverence, along with many other food offerings.
[5][6] Chho-Tsho, is another festival that is observed here in the month of October after the cardamom harvest to offer gratitude for providing people with food.