This paper proposes a sightseeing bus schedule optimization method for Park and Ride System in tourist attractions. The optimization method can provide a high-quality tourism experience by decreasing passenger waiting time. The optimization method consists of two fundamental steps. First, modal split for self-drive tourists is proposed based on a logit function. Then, the sightseeing bus schedule considering dynamic passenger demand is designed based on the sightseeing bus time-expanded network. The numerical results show that the sightseeing bus schedule optimization method can decrease passenger waiting time efficiently and can be applied to more realistic tourism attractions.