How far is 100 metres?

An illustration of two whales in the water, in the foreground, with a boat in the distance, in the background. In the open space between the whales and the boat are images that represent a distance of 100 metres, showing that the boat is the appropriate distance away from the whales.

The first image between the whales and the boat, closest to the whales, is a football field with the words “1 football field” beside the image.

The second image between the whales and the boat is of a school bus. The words “7.5 school buses” appear beside the image of the bus.

The third image between the whales and the boat is of the silhouette of a Boeing 747 airplane. The words “1.5 Boeing 747s” appear beside the image of the airplane.