On Carnival Sunday, Rio de Janeiro comes alive with a series of street parades known as 'blocos'. The day kicks off at 6 AM with the Boitolo bloco, which attracts revelers to a location known only on the day itself, not part of the official city schedule. This bloco meanders through various neighborhoods and may go well into the night, showcasing the spontaneous and communal spirit of Carnival.

By mid-morning, the festivities ramp up as the Bangalafumenga takes over Aterro do Flamengo at 9 AM, followed by the 20th Multicultural Ball of Cordão do Boitatá at 10 AM, held at Praça 15. Unlike the other blocos that traverse the streets, Boitatá offers a large open-air ball with a fixed stage dedicated to Brazilian music, illustrating the variety of celebrations during Carnival.

As the day progresses, more blocos join the festivities, including the Empolga às 9 in Leme at noon, the Toca Raul at Tiradentes at 1 PM showcasing music of Raul Seixas, and the Agytoê under the Arcos da Lapa. The day culminates in Ipanema with the vibrant Simpatia É Quase Amor parade, embodying the essence of Rio's Carnival spirit and community participation across diverse locations.