Understanding spatio-temporal patterns of tourist movement behaviors is vital for Destination Management Departments (DMDs) on destination planning, marketing, and resource management. This study uses open GPS-trajectory data to analyze the microscopic spatio-temporal patterns of tourists’ movement behaviors in Mount Huashan in China. Two major measures, Markov chains and cluster analysis, are used to cluster tourists into groups to show their spatio-temporal movement behaviors within the study site. The Markov chain analysis unveiled three kinds of spatial patterns on microscopic tourists’ movement: proximity transfer, span transfer and hub transfer, while the cluster analysis further demonstrated three kinds of microscopic spatio-temporal patterns: day-climbing, night-climbing, and full-day sightseeing. These results provide vital implications for tourism management of the mountainous scenic areas in general and in Mount Huashan in particular.