With the increase in severe heavy rainfall caused by climate change, the Ministry of Land, Infrastructure, Transport and Tourism and prefectures have begun flood control efforts in watersheds. In July 2020, Kumagawa river was severely flooded, and t he municipal of Kumamoto has declared natural flood management policy with green businesses called “green watershed-based f lood control.” Japan Science and Technology Agency and more than 15 organizations started a project to enhance catchment- based flood management and sustainable society in the Kumagawa area. One of the goals of the project is to create businesses collaborating with flood control management in the target region. To create a business in the region, a study tour has been launched to aim following goals. 1. disseminate the concept and methods of the catchment-based flood management. 2. improve local s cientific literacy. 3. expected economic benefits. 4. promotion of regional cooperation. This paper introduces the tour and examines t he survey of participants of the tour. Using SD survey method, this examines if the goal 1 is accomplished or not. As a result of t he survey, the tour proved to be effective in promoting the concept of green natural flood management to the participants.
