Kaso River, also known as Ci Kaso is a river in Sukabumi Regency, West Java, Indonesia, about 140 km south of the capital Jakarta.

[3] The Cikaso waterfall is in the Ujung tourist area between Jampang Kulon and Surade.

The waterfalls have a height of almost 80 metres (260 ft), with three parallel drops along cliffs that are about 100 feet (30 m) wide.

[4]Kaso river is the main stem in the Cikaso drainage basin.

The warmest month is August, when the average temperature is around 26 °C, and the coldest is January, at 20 °C.