・36 companies and organizations based at Shonan i-Park participated as exhibitors, instructors, and advisors. Hands-on exhibits by 17 of these organizations were especially popular. ・The new initiative "Talk with Researchers! Open Chat Corner" allowed visitors to casually interact with researchers from within Shonan i-Park. ・The "Student Research Presentation Session" featured presentations by 18 middle and high school student groups. Attendees commented, "It was extremely valuable to hear presentations by students." i-Park Institute Co., Ltd. (Headquarters: Fujisawa City, Kanagawa Prefecture; President & CEO: Toshio Fujimoto; hereinafter "i-Park Institute") held the "Shonan i-Park Festa 2026 - The Day My 'Why?' Comes Alive. Learn, Enjoy, Try. A Science World for Everyone to Enjoy Together" on May 23. The event aimed to open Shonan Health Innovation Park (hereinafter "Shonan i-Park"), Japan's largest life sciences research hub, to the public and allow visitors to experience the appeal of science through direct interaction with working researchers. This fourth edition featured the ever-popular science experience booths and science shows hosted by resident companies and organizations, the well-received "Shonan i-Park Student Research Presentation Session," and introduced a new feature: the "Talk with Researchers! Open Chat Corner," where visitors could casually discuss researchers' jobs and career guidance. Attendees shared feedback such as, "Research felt much more accessible," and "It was great to learn about the business activities of various companies, which we normally wouldn't have access to." Video of the Shonan i-Park Festa 2026 is available here: https://youtu.be/0CixrKEWlQI?si=iqxBhGY_nK9TYuEn Highlights from the event are introduced below. ■ 20 "Science Experience Booths" Hosted by Resident Companies and Organizations The annual popular experience booths by companies and organizations based at Shonan i-Park lined the approximately 400-meter-long corridor (n