This paper makes the case for natural disaster emergency planning to be incorporated into sustainable tourism strategies, using seismic risk scenario planning as a technique, and the Southern Alps of the South island of New Zealand as an example. The Alpine Fault is a 450-km-long geological structure running the length of the Southern Alps in New Zealand. Paleoseismic evidence suggests that a significant earthquake of magnitude (M) ? 7.8–8.0 is overdue. Coincident with this area of high seismic potential is a growing tourism industry, capitalising on the region’s international reputation for nature-based tourism experiences. The scenario planning approach uses an isoseismal modelling methodology to describe a range of specific vulnerabilities in the tourism sector and highlight the physical outcomes and consequences for tourism-related infrastructure, transport, food supply, rescue, and survival likely to result from a future M8 earthquake on the Alpine Fault. Interviews with hazard management agencies investigated how tourism is considered in the context of current hazard management policies, and the urgent need to bring industry policies into partnership with other planning agencies and policies. Risk management is shown to be essential to address the triple bottom line of sustainable tourism management.