By virtue of the "Forests are lovers of the sea tree-planting ceremony" that started in 1989, 30,000 broad-leaved trees of 50 species have been planted in the upper reaches of the Okawa River, which runs into Kesennuma Bay. However, our activities not only aim at the creation of upland and marine forests, but the thought that the cultivation of mental forests is the most important thing. I would like to introduce activities for the cultivation of children's mental forests through a hands-on learning classroom.

The Koza River is a clear stream flowing through the Kumano region of Wakayama Prefecture, but the impact of the Shichikawa Dam - which exists for the purposes of flood control and power generation - on both the river and the river mouth during both ordinary times and times of heavy rain is not insignificant. The Field Science Education and Research Center of Kyoto University is attempting to clarify the impact of this manmade structure on the natural environment especially the linkage among forests, the countryside and the sea based on detailed data.
Selected Papers No.7(p.8)

The Katsura-Sagami River, which runs from Yamanashi Prefecture to the central area of Kanagawa Prefecture and flows into Sagami Bay, has been supporting industrial development in adjoining cities but at present, important issues for environmental conservation are accumulating. The Katsura-Sagami River Basin Council is promoting the Local Agenda 21 of the Katsura-Sagami River Basin in order to build an environmental conservation-oriented society based on sustainable development, and to hand down the many blessings from the clean, bountiful Katsura-Sagami River to the next generation.