There is a place to learn Olympic Mathematics in Chaohu Lake. You can study Olympiad in Chaohu Huanyue Extracurricular Training School, Chaohu Primary School Olympiad Tutor, Chaohu Silent Training School, Chaohu Jiayi Mathematics Training School and Chaohu Aikao Training School.

Chaohu Lake, once called Nanchao and Juchao Lake, is commonly known as Jiaohu Lake. It is one of the five largest freshwater lakes in China, located in the middle and lower reaches of the Yangtze River. Located in the middle of Anhui Province, surrounded by Hefei, Chaohu, Feidong, Feixi and Lujiang, it is 55km long from east to west, 2 1 km wide from north to south, with a coastline of176km long, with an average water depth of 2.89m, an area of 780 square kilometers and a volume of 2.07 billion cubic meters.