The city's local theme park, Ocean Park, said it was cancelling its annual Halloween fest to prioritise the safety Online Cigarettes Store USA of visitors and staff.
Staff at the park, which is located on the southern part of Hong Kong island and away from the teeming bars, expressed disappointment at the last minute cancellation.
This month Hong Kong leader Carrie Lam banned protesters from wearing face masks under a British colonial-era emergency law, but the measure has been largely ignored.
Halloween masks have not been banned, which would make it difficult for police to differentiate protesters from the plethora Newport Cigarettes Shop of revellers in fancy dress.
Police have warned members of the public that unauthorised assembly poses a serious threat to public order and safety.
Protesters are angry at what they see as Beijing's increasing interference in Hong Kong, which returned from British to Chinese rule Cheap Newport 100s cigarettes in 1997 under a "one country, two systems" formula intended to guarantee freedoms not seen on the mainland.
China denies meddling and has accused foreign governments, including the United States and Britain, of stirring up trouble.