In Japan, the trend for ‘factory love’ (Kojo Moe) — appreciating and photographing sites of heavy industry — has led to the development of organized night-time tours to industrialized locations within cities and city-ports. These night-time factory tours (Kojo Yakei) are primarily aimed at the domestic market and are particularly popular with small groups of young Japanese women. This photo essay considers the experience and aesthetics of these night-time urban tours, their social and performative aspects and their relationship to other types of industrial tourism.