This paper explores young tourists' perceptions of fear on holiday. The work on which this paper is based is important because it sheds light on tourists' emotional experiences on holiday, which are central to increase our understanding of tourist behaviour. The importance of investigating perceptions of fear has been recognized within a number of different disciplines, such as psychology, sociology, criminology, and marketing. Indeed, it has been argued that fear may provide significant information concerning an individual's motivations, preferences, and patterns of behaviour. Despite this, perceptions of fear within the tourism experience have remained relatively unexplored. It is often assumed that perceptions of safety and security may influence individuals' destination choice. However, there is a paucity of studies concerning tourists' perceptions of fear during the tourism experience. This paper is based on three months of qualitative fieldwork conducted on the island of Ios, Greece in the summer of 2007. More specifically, participant observation and semi-structured interviews were methods employed for data collection to explore young tourists' perceptions of fear. The possibility to develop a rapport and build a relationship with young tourists on Ios was crucial to collect valuable information concerning tourists' background, their emotions, expectations, perceptions, and the context in which perceptions of fear were experienced and expressed. The study found that most holidaymakers on Ios participated in activities perceived as risky in order to experience fear. In this respect, young tourists deliberately sought fear and thrill to increase their levels of pleasure and enjoyment during the tourism experience. The results suggest that fear may play a positive role in the tourism experience of young tourists, which should no longer be ignored by tourism scholars.