This paper identified factors influencing the frequency of the visits to the water environment and the attachment of residents toward the Fukushima-gata lagoon, Niigata Prefecture, Japan, as a case study, while focusing on changes in the lifestyle of the regional residents. It was suggested that the project contributed to increase the attachment of regional residents towards Fukushima-gata lagoon because of multiple factors, such as playing in the water, livelihood opportunities, and recreational use. Changes in the attachment of regional residents toward Fukushima-gata lagoon before and after the reclamation project was carried out by the government corresponded to changes in the lifestyle of the local residents before and after the project.
