Tickets to see the Carnival parades 2016 can nowl be bought in the Samba avenue at the stall of BRADESCO/LIESA, installed behind sector 11 from Monday to Friday 10:00 - 16:00.
Information about prices:
http://liesa.globo.com/2015/por/19-ingressos/19-ingressos_principal.html
The cheapest way to see the carnival parade of the big Samba schools live is going to the Parade of the Champions, featuring the five winning Samba schools, on the Saturday after Ash Wednesday.
Prices can drop up to 100%!!!