A growing number of tourists are choosing to visit slums and favelas as the sole reason for, or as part of, their holiday; it is understood that this is to experience for themselves people living in poverty. There is an argument that slum residents benefit from tourism to these areas but others state that this doesn't always happen and the right to dignity and privacy for these people needs to be considered.
This article by Tourism Concern, asks the question, 'Is it ever right for tour operators to offer excursions to slums?' and includes a case study of the largest favela in Brazil.