Berlin Tour Group Size Viewer: What Reaches the Back Row
Pick a walking tour group size from 6 to 45 and see the group standing around its guide, drawn to scale: how far the back row is, how small a hand-held archive photo looks from there, and how much quieter the voice arrives.
A scale model of a tour group at one stop, from 6 to 45 people.
Walking tours in Berlin run with anything from six people to more than thirty. The number decides how close you stand to the guide, how well you hear on a busy square and whether you can see what the guide is holding up. This viewer draws the group to scale so you can judge a tour by its maximum size before you book.
What the viewer shows
A walking tour group at one stop, seen from above and drawn to scale. Pick a group size from 6 to 45 people and the plan seats everyone in rows in front of the guide. Tap any person to stand there. The archive photo next to the plan shrinks to the size a hand-held print looks from that spot, and the yellow box tells you the distance, how much quieter the guide sounds than in the front row, and how many people stand behind the second row.
What the model assumes
Every person gets a standing space of 0.9 m by 0.9 m, a loose and comfortable group. The rows fan out in front of the guide, starting 1.5 m away.
The photo is an A4 print, 30 cm wide. A bigger print changes every photo figure by the same factor.
Sound from one speaker outdoors falls by about 6 decibels each time the distance doubles.
A narrow pavement, a bridge or a loud street spreads a large group further than the plan shows.
How to use it before you book
Find the maximum group size on the tour listing and try that number here. My own walk, Berlin Then and Now, takes no more than 10 people, so nobody stands further than about 2.4 m from the photo. If a listing gives no maximum, try 25 and 35 and decide whether the back row is a place you would be happy in.