Kali Brantas is a significant river located in East Java, Indonesia. It flows approximately 320 kilometers and is known for its vital role in irrigation and agriculture in the surrounding regions. The river originates from the Bromo mountain area and eventually empties into the Java Sea. The Kali Brantas is also popular for recreational activities such as fishing and rafting. Its banks are lined with various communities that rely on the river for their livelihoods. The river's ecosystem supports diverse flora and fauna, making it an important natural resource for both the environment and local populations.