What is a soundwalk?

What is a soundwalk? After reading the seminal text Soundwalking by Hildegard Westerkamp from 1974 students and interested walkers are asking time and time again: What do you do actually do on a soundwalk? What could be the factual benefit of going on a soundwalk?

One of the most concise definitions of a soundwalk I came across recently in form of a perfectly made clip by artist Amanda Gutiérrez made on occasion of the Soundwalks In The Park-series in Chicago, organized by the Midwest Society for Acoustic Ecology: