The Ofune boko, also called the 'Gaisen funaboko,' was a grand boat-shaped hoko float that paraded at the end in the Ato no Matsuri; the Ofune boko was lost in a fire caused by Conspiracy of Hamaguri-gomon Gate in 1864 except for the object of worship of Empress Jingu and some of the objects used for decoration.
後祭の最後尾を飾っていた壮大な船型の鉾で「凱旋船鉾」とも呼ばれていたが、元治元年（1864年）の蛤御門の変による大火で神功皇后の御神体や懸装品を残して消失。