The new indoor playground "mirocco" opened in Kakegawa City, Shizuoka Prefecture in July 2025. It aims to be a place where not only children can play to their heart's content, but also families and local people can enjoy together. This facility was built by renovating the pool and hot spring facilities at the indoor facility "Tamarina" in 22nd Century Hill Park in Mansui, Kakegawa City, and renovating it into an all-weather playground. We were responsible for the entire process, from concept formulation to design, construction of interiors, play equipment, decoration, and operation, while utilizing our know-how in regional revitalization and facility business. In addition, as an independent DBO* project, we made private investments in this facility, and improved the facility's appeal by adding play equipment, built-in furniture, signs, graphics, etc. About the facility concept/space concept design The facility concept is "Let's create a bouncy everyday life." The name "mirocco" was decided by vote, with the intention of creating a facility that everyone will want to visit 365 days a year (3=mi/6=ro/5=ko). The main areas are "Guru Guru no Yama" where you can play with play equipment, "Waku Waku Base" where you can play quietly, "Hitoyasumi Lounge" where adults can relax, and "Haihai no Hara" where babies can play safely. In addition to these areas, "This Is Cafe", which has new stores in Shizuoka Prefecture, will open in Tamarina and offer a menu that is easy for customers of all ages to use. In addition, the interiors of the facility, play equipment, benches, etc. are made with local resources, and environmentally friendly materials are used in various places, such as benches made from local felled wood, a craft space where scraps and waste materials are used as craft materials, and plaster walls made from Kakegawa's "soil". *DBO: Abbreviation for Design Build Operate, a business method for developing public facilities. The public sector commissions private businesses to design, build, and operate the facility.