For Amsterdam tours, local regulations state limit us to a maximum of 15 people per guide in Amsterdam. For a group of more than 15 people, we schedule multiple guides. The restrictions are strictly monitored by the municipality, exceeding the maximum per guide may result in a fine and us losing our license.
The other cities have no legal restrictions. However, we feel we can offer our best service with groups up to 20 people per guide in Rotterdam, The Hague, Haarlem, Utrecht & Delft. For a group larger than 20 people, we schedule multiple guides.
This way we can maintain the quality that our visitors deserve!