In this thesis, we explore designing for enjoyable interactions with public installations based on body motion tracking . We also discuss evaluation of user experience related to such installations. The subject of user experience (UX) is sparsely researched, and its theoretical foundations and methodological approaches are highly debated. A central issue within this debate is the transferability and application of different theories and concepts from research to speciﬁc UX design and evaluation practices. Another issue is the application of theories to the study of UX in different use contexts. To tackle these problems, we decided to ‘jump in at the deep end’. We set out to design an audiovisual installation that facilitated for enjoyable user experiences, without clearly deﬁning our goals or methodological approach beforehand. We immersed ourselves in the subject matter throughout the design process by researching technologies, concepts, theories, and methods while doing practical design and testing of prototypes, thereby grounding our speciﬁc design process in relevant theoretical and methodological approaches. Our installation prototype has been evaluated in lab sessions with expert and amateur participants, as well as displayed in two public contexts. This work exempliﬁes how theories and methodologies can be applied to the practice of UX design and evaluation, and how different contexts can affect the user experience.