The Czech capital with 1.3 million inhabitants has long been a popular destination for rowdy Swedish guys and night-time pub crawls, especially among Brits craving cheap beer.
It is the guided pub crawls between 22:00 and 06:00 – where participants are expected to crawl home – that are being banned, explains Vice Mayor Zdenek Hrib.
The city is seeking more "cultivated, affluent tourists... not those who come for a short visit to get drunk", adds colleague Jiri Pospisil.
The decision is welcomed by the hotel and restaurant industry. Beer tours to central Prague have been a problem for both locals and other tourists, according to the trade organization.
I don't think this will harm sales. No one is forbidden from going to the pub, but the night-time, organized tours are not something we need, says the trade organization's CEO Vaclav Starek.