Fetch - GCSE Geography Definition

In GCSE Geography, "fetch" refers to the distance over water that the wind blows in a single direction, creating waves. The longer the fetch, the more energy the wind can transfer to the water, resulting in bigger and more powerful waves. For example, if the wind blows across a wide ocean without any obstacles, it can create large waves because the fetch is long. This concept helps us understand how waves form and why some coastlines experience bigger waves than others, which is important when studying coastal geography.