Explained in plain English

What are floating islands?

Floating islands, often called 'tussocks' or 'sudd', are natural phenomena where vegetation, soil, and roots become buoyant and detach from the lakebed or shoreline. They can range from small mats to large, tree-laden masses like the one in Williston Lake. Their movement is usually driven by wind and currents, creating a dynamic and sometimes puzzling sight for observers.