Amsterdam seems poised to stop tourists from buying cannabis from the city’s famous bars as they try to reduce overcrowding.
The red light district will also be a prohibited area for groups while the Dutch city struggles to cope with the volume of visitors.
More than 17 million travel to Amsterdam every year: many will make the most of his tolerant drug policy.
Now Mayor Femke Halsema has come up with a plan to restore order in the Dutch capital.
He wants to reduce the numbers in an attempt to clean up Amsterdam’s seedy reputation for the benefit of its 1.1 million permanent residents.
About 100 people aged 18 to 35 were interviewed, with 57% saying that coffee shops played an important role in the decision to visit Amsterdam.
The Amsterdam research, information and statistics office suggests that almost half of the British say they would be less likely to visit the city again if they were prevented from making use of its famous hash shops.
Mayor Helsema said he wanted to commission “a study this year to reduce the attraction of cannabis for tourists and the (local) regulation of the back door”.
“A clear separation of the markets between hard and light drugs has a great urgency due to the hardening of the trade in hard drugs,” he wrote.
In a separate announcement on Thursday, the city hall in Amsterdam said that a ban on group tours of the red light district will come into effect on April 1.
Tours to other parts of the city that contain prostitute windows will also be banned.
Guided visits to any other part of the center will require a permit.
Currently, up to 115 guided tours pass through the red light district every day, with residents complaining of hardships and prostitutes claiming that tourists are often offensive and taking photos without consent.
The council voted to limit the size of the tours to 15 people and forbid them to stop in crowded places.
Deputy Mayor Victor Everhardt said “it is disrespectful to treat prostitutes as a tourist attraction.”