The official carnival parade takes place on Monday and on Wednesday and starts at 1.30pm on both days.
More than 10,000 masked carnival members parade along a set route through the city centre displaying their «sujets» or special carnival topics, accompanied by the sound of drums, piccolos and «Gugge» music.
They travel by foot, on carnival floats or horse-drawn carriages, carrying lanterns and many other comical accessories.
People in the procession throw confetti and distribute oranges, yellow mimosa and many other things to the spectators along the route.
Most groups also hand out their own colourful sheets of paper («Zeedel») which make fun of local events and personalities in verse form, written in the unfathomable local Basel dialect.