Whitewater rapids are sections of a river where the water flows quickly and turbulently over rocks and other obstacles. This fast-moving water creates waves, eddies, and foam, making it challenging for boats and kayakers to navigate. The intensity of the rapids can vary, with classifications ranging from easy to extremely difficult, depending on factors like water speed and the size of the obstacles. These rapids are often found in mountainous or hilly areas, where the terrain causes the river to steepen. Adventurers enjoy activities like whitewater rafting and kayaking in these areas, as they provide thrilling experiences and opportunities to connect with nature.