GreenSnap Inc. (Headquarters: Chuo-ku, Tokyo; Representative Director: Koichi Nishida), the operator of the plant community app "GreenSnap," is pleased to announce the results of the "Hanamiru Stamp Rally," an experiential event held in Yokohama to visit famous flower spots as part of "Garden Necklace Yokohama 2026," an initiative promoted by Yokohama City for creating a city of flowers and greenery. The event, held from March 19 (Thu) to June 14 (Sun), 2026, attracted a total of 4,642 participants. A total of 5,202 photos of seasonal flowers taken by participants at each spot were automatically posted on the special website "Hanamiru Spot Yokohama," creating a system that allows real-time enjoyment of Yokohama's spring flower bloom status and enabling the promotion of attractive spots. ■ Background of the "Hanamiru Stamp Rally" The "Hanamiru Stamp Rally" was held as an experiential event to encourage participants to actually visit famous flower spots, as part of Yokohama City's "Garden Necklace Yokohama 2026" initiative. The event utilized GreenSnap Inc.'s digital stamp rally system "Smapeta" (https://service.smapeta.jp/), providing an easy experience where participants could collect stamps and join photo missions through their browser without needing to install an app. The event targeted 8 spots, including those in central Yokohama such as Yamashita Park and Harbor View Park, as well as two events: "GreenSnap Marche YOKOHAMA 2026" and "Yokohama Flower & Garden Festival 2026." The design combined collecting visit stamps with a "Take a Photo of Flowers" mission. By encouraging an active experience of finding and photographing seasonal flowers on-site, rather than just visiting spots, the aim was to create a system where participants themselves become recorders of Yokohama's spring scenery and share the charm of the flowers and greenery that adorn the city. ■ Many Participants Visited Multiple Spots During the event period, a total of 4,642 participants visited, with