Tourism infrastructure refers to the set of facilities and services necessary for the tourist to be able to stay in a destination and engage in various recreational and cultural activities typical for tourism. With the advent of smart tourism phenomenon, tourism destinations have possibilities to use the state-of-the-art technologies in infrastructure planning. The chapter explains how technology, such as geographic information system, Internet of Things, blockchain, gamification, and augmented and virtual reality, helps to plan the tourism infrastructure in a smart way. The use of these technologies is illustrated on the mature tourism destination—the High Tatras, Slovakia. The semi-structured interviews with the most important destination stakeholders are used to evaluate the attitudes toward designing and building the infrastructure. The chapter presents that the use of the technologies in a smart way can prevent the negative effects of overtourism and tackle the problems of tourism infrastructure planning.