Abstract
The purpose of this research is to obtain the basic data to keep better maintenance in the forest recreation area. The state of feelings and impression getting from walking through the area were understood using psychological scaling, and the physical environmental factors such as the Light, Thermal, and Ion environment were measured quantitatively. There is a psychological effect of being released from stress by the walking through the forest, and this effect is considered to have a correlation with spatial images getting from walking. The image obtained from walking through the forest better corresponds to physical environmental factors especially in the Thermal environment. It was thought that a psychological effect of the forest relaxation was combined complexly with various physical environmental factors.