In terms of management on the event date, by following a flow that consisted of (1) briefing (around 10 to 20 minutes, weather confirmation, role assignment, and safety information sharing) → (2) setup (around 30 to 60 minutes, access mat setup, waiting and rest area positioning, and equipment preparation) → (3) experience (around 30 to 90 minutes, support after entering the water and rest breaks during the event) → (4) withdrawal (around 30 to 60 minutes, changing clothes, shower guidance, equipment cleaning and inspection, and sharing what was learned), it was possible to achieve safe, highly reproducible accessible-beach management. First, during the briefing, staff members shared information on the weather, wave situation, dangerous locations, the status of participants, the division of roles, procedures for responding to emergencies, and other details to ensure that everyone could take action based on the same assumptions. Meanwhile, during the setup stage, everyone set up access mats from the embankment to the water’s edge, established the flow of participants, and safely positioned rest and waiting areas. During the experience stage, suitable equipment and assistive methods were selected according to the disability characteristics and physical conditions of participants, participants were handled using a multiple-person system that included a pusher, people who provided support from the left and right, and a safety supervisor, and the tide, waves, and fatigue of participants were constantly observed. During the withdrawal stage, the flow of people to areas where they could change their clothes and shower was confirmed as equipment was cleaned, inspected, and put away, and everyone shared possible points of improvement for next time. The flow presented by Mr. Fuchiyama, which involves “preparing step by step and then safely handling each process,” is a practical procedure for business operators to use to take full advantage of site characteristics when they design and manage nature-experience programs in the future.