A cape is a headland of large size that extends into the sea. Capes are generally prone to erosion, and therefore, have a short geological span. Moreover, they are often formed by glaciers, volcanoes and changes in sea levels. If we were to use the word "cape" in relation to Portuguese explorers, we could say something like:
"In the Modern Era, the "Cape of Storms" was discovered by Portuguese explorer Bartolomeu Dias. This was later renamed "Cape of Good Hope" by John II of Portugal."