This study aims to investigate the evaluation of the Lake Toba Priority Tourism Master Plan (LTPTMP) for the year 2022. Employing a qualitative research design, the research utilizes a thematic approach. Data collection involves interviews, observations, focus group discussions (FGDs), and document studies. The selection of informants is done through purposive sampling. Thematic analysis is employed for data analysis. Findings indicate that key stakeholders, such as local governments and ministries, exhibit a good understanding and implementation of the LTPTMP. However, the community and Micro, Small, and Medium Enterprises (MSMEs) in the Lake Toba region lack awareness and knowledge regarding the LTPTMP. Challenges in implementing the plan include issues like lake water pollution, deforestation, the presence of waste, especially in tourist-frequented areas, low public understanding and awareness of resource conservation, and inadequate management by the Regional Government. Furthermore, the incomplete infrastructure network hampers visitors’ ability to explore various sites.