Nui Coc Lake
Vietnam
Núi Cốc Reservoir (Vietnamese: Hồ Núi Cốc) is an artificial lake, approximately 25 kilometres (16 mi) west of the city of Thái Nguyên in Thái Nguyên Province, Vietnam, in Tam Đảo National Park. It is a popular visitor attraction on account of the legend associated with the 89 islands within the lake.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).