This report describes the Nature Game Instructors training course executed in a college curriculum and an extension lecture of Nara Saho College in December, 2003. The training course was carried out in the college campus and the forest of Gokoku shrine near the college for 3 days (9:00-18:00). The college students and the participants from the outside actively and enthusiastically enjoyed "Nature Game" as "Sharing Nature" activities set. The participants could improve their senses to the nature through Nature Game. This field activity program suggests to be effective in order to greatly change the approach of the students to the nature.