The Yokohama Ice Cream Expo was celebrating the 130th anniversary of the arrival of ice cream in Japan, and the flavors on show were exotic regional varieties, including eel, raw horse, curry, crab, and potato.
Manabu Matsumoto, the organizer of the festival that attracted thousands of fans before it closed on Sunday, identified beef tongue ice cream from Miyagi Prefecture as the most popular variety.
"We have ice cream from all over Japan - from Hokkaido in the north to Okinawa in the south - but beef tongue is the one that people keep coming back for," the Telegraph quoted him as saying.
The two-week festival offered more than 125 varieties of ice cream, including cheese, octopus, prawn and a garlic variety called Dracula Premium Ice.
Another much-loved ice cream was flavored with very finely sliced pieces of pearl from the traditional pearl-growing region of Japan's inland sea.
Most of the ice creams were available for between Y300 (1.42 pounds) and Y800 (3.78 pounds) for a small tub.