This study verifies an activity system model that enables sustained tourism town-planning activities in rural areas with limited human resources. This model is a tentative hypothesis based on social bricolage, with emphasis on volunteer teams and human resources. We named it the “human resources bricolage-type activity system,” and we verified this model through a case study in Kashimo District of Nakatsugawa City, Gifu Prefecture. In the case study of Kashimo District, we examined the following four areas: (1) the content of tourism town-planning activities and the entities involved; (2) the actual state of regional organizations involving multiple stakeholders; (3) the roles, skills, and expertise of human resources involved in tourism town-planning activities; and (4) the formation of volunteer teams involved in tourism town-planning activities. We presented a model for the human resources bricolage-type activity system for sustained rural tourism planning activities consisting of the following six elements: “(1) leveraging the skills and expertise of human resources across regional boundaries,” “(2) establishing a tourism committee as a platform for discussing and sharing a strategic vision for sustainable tourism planning, without assigning dedicated staff or tourism professionals to the regional tourism association,” “(3) forming a volunteer team comprising of semi-permanent management personnel and rotational members aligned with specific objectives, enabling flexible implementation of activities,” “(4) creating new value by producing tourism content and fostering connections with regional experience seekers,” “(5) establishing a cooperative framework that leverages the functions and resources (consensus-building, information dissemination within the region, human resources) of existing regional organizations through management personnel,” and “(6) acquiring human resources from both within and outside the region and expanding diverse activities.”