It is held in the province of Entre Ríos, Litoral region, where most of the Argentine summer festivities take place: Gualeguaychú carnival. It is very different from that in Buenos Aires and the murgas; Gualeguaychú will make you remember Río de Janeiro, the typical floats, the queens, the dancers dressed in sequins and feathers, and the nice and hot environment at the edge of the Uruguay River.
A sambadrome for 40,000 spectators was built in 1997. The social and neighbor clubs that work all the year round for the choreography and apparels parade here on Saturdays in January, February and at the beginning of March. This carnival tradition dates back to the end of the 19th century but today samba groups such as Marí-Marí were formed in the 1970s, introducing the Brazilian rhythm bands and samba.