Although we can't bring trees and prairie plants and frogs into these environments, we are bringing images of nature into these exercise yards, putting them on the walls, so at least they get contact with visual images of nature.
木や植物、カエルを 身近な環境に持ち込めませんが 自然のイメージを 運動場に取り込み 壁も植物で覆うので 自然のイメージと接触できるのです