In less than two years, the concept of overtourism has come to prominence as one of the most discussed issues with regards to tourism in popular media and, increasingly, academia. In spite of its popularity, the term is still not clearly delineated and remains open to multiple interpretations. The current paper aims to provide more clarity with regard to what overtourism entails by placing the concept in a historical context and presenting results from a qualitative investigation among 80 stakeholders in 13 European cities. Results highlight that overtourism describes an issue that is multidimensional and complex. Not only are the issues caused by tourism and nontourism stakeholders, but they should also be viewed in the context of wider societal and city developments. The article concludes by arguing that while the debate on overtourism has drawn attention again to the old problem of managing negative tourism impacts, it is not well conceptualized. Seven overtourism myths are identified that may inhibit a well-rounded understanding of the concept. To further a contextualized understanding of overtourism, the paper calls for researchers from other disciplines to engage with the topic to come to new insights.

This article reflects on the Costa Rican experiences with ecotourism by assessing the positive and negative environmental, economic and social impacts of ecotourism development at four tourist destinations-Manuel Antonio, Monteverde, Tortuguero and ASCOMAFOR. These destinations represent different stages of tourism development. The assessment shows that the development of ecotourism has a dilemma character. Compared to alternative land-use options, ecotourism remains a promising development strategy. However, it should be embedded in a broader process of capacity building.

years, so has the number of tourists taking part in slum tourism. Recent estimates by the authors point to an annual number of over 1 million slum tourists. Most of these tourists will go on 2-3-hour-long guided tours in slums and 80% will do so in just two destinations: the townships of South Africa and the favelas of Brazil (Fig. 1). Within these destinations South Africa has township tours across nearly all the country's largest cities and towns, while favela tourism in Brazil is mainly concentrated in Rio de Janeiro. Slum tourism is thus a mass tourism phenomenon occurring only in few destinations and a niche

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