Chongqing is situated in the upper reaches of China's longest river, the Yangtze, at its confluence with the Jialing River. Most of its roads meander around water or against mountains and old houses interspersed among the skyscraper jungle. The major tourist attractions gather in Yuzhong, Shapinba and Nan'an Districts. At night, the skyline is absolutely stunning with the sparking lights from tens of thousands of households mingled with the reflections from the water. The climate is mild with warm winters, hot summer days and rainy nights.