What might be a reason for a swiftwater rescue in a rapid river?

A swiftwater rescue may be necessary for individuals attempting to cross a rapid river because such situations can quickly become dangerous. Rapid rivers can have strong currents, hidden obstacles, and unpredictable water levels that can overwhelm even experienced individuals. When people attempt to cross these rivers, they may encounter conditions that exceed their ability to navigate safely, resulting in distress or emergencies that require immediate rescue intervention.

While fishing accidents and sudden boat capsizing can also lead to situations requiring rescue, the act of attempting to cross a rapid river directly involves a high risk of being swept away or caught in hazardous conditions. Regular training exercises, while important for preparedness, are not emergencies that require intervention in the same way that mishaps leading to rescue situations do. Thus, the scenario of individuals attempting to cross stands out as a primary concern in swiftwater rescue operations.