Latin America Monitor Brazil's 2013 Carnival may have rocked ... but parts also stank.

The amount of trash collected during this year's blocos, or street parties, grew 30 percent from last year – and tourists noticed, with 1 out of 4 citing sanitation as a negative of their Rio Carnival experience.

By , Guest blogger

Silvia Izquierdo/AP

A version of this post ran on the author's blog, riorealblog.com. The views expressed are the author's own.