There are numerous lakes with different colors dotted between Tibetan snow-capped mountains and boundless grasslands. Like sapphire, calaite, and emerald, all the lakes in Tibet have their own legends. They bless the holy Tibet land and are praised by local Tibetans generation by generation.
Lhanag-tso Lake is also called Ghost Lake, which means “poisonous dark lake” in Tibetan languages. Lhanag-tso Lake is located next to the holy Mapam Yumco. The legend goes that there is a cosmic door under the lake which connects the two lakes together. The water qualities of the two lakes are totally different. The water in the holy lake - Mapam Yumco is sweet and fresh, while the water in the ghost lake tastes bitter and bad.