A very happy day at the port of Rio de Janeiro, possibly 1975, but certainly in the Carnival week.
The cruise ships in sequence: ITALIA (Costa Line?), IVAN FRANKO (U.S.S.R.), ANCERVILLE (Paquet Cruises) and IRPINIA (Siosa Line) plus a bulk carrier.
The bow is most possibly to be of the Portuguese liner INFANTE DOM HENRIQUE (Cia. Colonial de Navegacao).
For who has the Lloyd's Shipping Index of this period, it's possible to give the exact date, this information will be very welcome.

Photo collection: Edson Lucas