When the thermometer rises, kids everywhere love nothing more than cooling off in a river.

In this video shot on Sunday 31 July, dozens of school children play in the Kali Baru tributary of the Ciliwung river, at the Katulampa dam in Bogor city, West Java, Indonesia.

While they are dressed head to toe in tracksuits and hijabs, they clearly have a lot of fun.

The pupils also hung three huge red and white Indonesian flags from the dam bridge, to mark Indonesia's upcoming (17 August) independence day.

There are several tourist attractions around the Katulampa Dam, including the Katulampa Colourful Village, Katulampa Air Village, and the bag shop, SKI Katulampa.

Katulampa weir is located in Katulampa Village. It controls the flow of the Ciliwung river, which ultimately flows to Jakarta before reaching the sea.

The structure was built during Dutch colonial days, in 1911, with the aim of being an early warning of water flows to Jakarta, including the possibility of flooding downstream.

Dozens of schoolgirls and schoolboys play in the Kali Baru tributary of the Ciliwung river at the Katulampa dam, Bogor City, West Java, Indonesia, Sunday, July 31, 2022. The clear and fresh water makes them feel at home playing under the hot sun.

Countries in Europe, North Africa, the Middle East, to Asia have been hit by heatwaves that increase temperatures by more than 40 degrees Celsius. But Indonesia is not experiencing the same thing, why is that? Deputy for Meteorology, Climatology and Geophysics, Guswanto said, in Indonesia there is no heat wave phenomenon, the scorching heat in Indonesia generally ranges from 34-36 degrees Celsius during the day.

Heatwave according to the World Meteorological Organization (WMO) is a prolonged hot air condition for 5 days or more in a row.

Residents were also seen unfurling the red and white flag measuring 25 meters on the Katulampa dam bridge, the red and white flag was hoisted by residents to welcome the commemoration of the Independence Day of the Republic of Indonesia on August 17.

There are several tourist attractions around the Katulampa Dam which are visited by many local residents, people from outside the area to officials for holidays, namely the Katulampa Colorful Village, Katulampa Air Village, and the bag shop, SKI Katulampa.

Katulampa weir is located in Katulampa Village, Bogor City, West Java, which stems the flow of the Ciliwung river. This Dutch heritage building was built in 1911 with the aim of being an early warning of the water flowing into Jakarta. Another function of the Katulampa weir is as an early information system on the danger of flooding in the Ciliwung River that will enter Jakarta.