Carnival does have its traditional and fundamental elements, and among them are the famous parades and processions that wind through Barcelona's neighbourhoods. Huge floats, troupes of players and over-the-top costumes – all choreographed and starring locals of each neighbourhood, organisations and associations from around the city – transform the streets into one big celebration.
This year in the Ciutat Vella district they kick off a kids' parade called 'El petit Carnavalassu' (Mar 1, 5.45pm), and there's the 'Carnavalassu' in the Barri Gòtic (Mar 2, 6pm), the parties of the annual Ravalsotada in the Raval (Mar 9, 5pm) and Barceloneta's arnavalada (Mar 10, 11am).
In the Eixample, look out for the Carnival parades in the Dreta de l'Eixample and the Esquerra de l'Eixample (literally, the Right side and the Left side of the district) on March 2, at 11am and 5pm, respectively and the Carnival Parade in Sant Antoni (Mar 2, 5.30pm).
In Gràcia you'll find the traditional Rua al Coll parade (Mar 2, 11am) with a 'correfoc' (fire run) and party starting at 9pm in Plaça de Salvador Allende, and another Carnival Parade in the Villa de Gràcia neighbourhood (Mar 2, 6pm).
In the district of Horta-Guinardó you can choose between or move between the Guinardó parade (Mar 2, 11am) and the one in Carmel (Mar 2, 5pm), among others. The big parade in Les Corts is March 2 at 5pm.
Get more info on the Cultura Popular web page.