In midcourse it divides into channels on either side of Bananal Island, which is about 200 mi (320 km) long and the site of the National Park of Araguaia.

• 中游分成两条水道，通向巴纳纳尔岛（Bananal Island）两侧，岛长200哩（320公里）左右，岛上有阿拉瓜亚国家公园（national Park of Araguaia）。