As the name suggests, this mode of composition requires the listener to walk through an environment and was coined by the members of the World Soundscape Project (WSP). The path the listener walks is carefully chosen by the composer so the participant is guided through many different types of environmental sound, or focus on only a few types.
The sonic environment slowly unfolds through the journey as the listener gets closer to, and further away from, the sound source. The aim is that the listener will listen carefully to the environmental sounds and perceived it in a different or new way.
Photo: Wikimedia. (2006). Midtown Atlanta. Retrieved from http://upload.wikimedia.org/wikipedia/commons/0/06/Midtown_HDR_Atlanta.jpg
This form of soundscape composition has close ties with another approach such as sound art, as a sound walk actually passes through the sonic environment, but not all sound art is featured within the environment which it attempts to represent. Sound walks can be an impractical choice for some environments where the environment is too dangerous, or in hospitable, such as a volcanic crater, underwater.