When you hear the song "Blue Danube" on the street, there is a high probability that you have encountered a regal ice cream truck. For decades, this small car with white body, blue roof and red front has carried the childhood of countless Hong Kong people, and it is still very popular today. Regal Ice Cream originated in Philadelphia, USA, was introduced to the UK in the 70s, and then brought to Hong Kong. Later, the Hong Kong government stopped issuing licences for itinerant vendors, and today there are only 14 Regal ice-cream trucks left in Hong Kong.

The Regal Ice Cream Truck still comes in the same four flavours: Creamy Soft Cream, Praline Cone, Lotus Cup and Jumbo Orange Ice. The specified size of the ice cream is two and a half circles, and it uses American milk powder and adds butter to make it smoother. Since the license plate cannot be transferred, most of the people who squeeze the cones on the ice cream truck are old men. The interior of the car is small, and according to government regulations, there is also a sink, so there is only one ice cream machine in a car.

Ice cream trucks are mostly found near schools and train stations, and are often seen in Tsim Sha Tsui, Mong Kok, Central, Temple Street and other places on holidays. The body is printed with "Fresh every day made for you", if you are lucky enough to come across, don't forget to look for that traditional childlike fun.