What do 21,081 steps look like? The organizers of Photohope hope to find out on an upcoming “photowalk” across Tokyo in support of mental health awareness.

Set to take place on World Mental Health Day, Oct. 10, the photowalk coincides with mental health nonprofit TELL Japan’s Step Up Challenge, a campaign to encourage people to walk 21,081 steps — the same number of lives lost to suicide in Japan last year.

The photowalk, organized by Brian Scott Peterson and Yuko Yoshikawa, builds off the success of the duo’s ongoing Photohoku project, which they started in the aftermath of the Great East Japan Earthquake of 2011.