Station Volunteers look for trash at Futashika Umezu Falls, in Futashika, Yamaguchi Prefecture, Japan, Oct. 16, 2015. The Single Marine Program at Marine Corps Air Station Iwakuni, Japan, provides residents volunteer opportunities to build relations with Japanese locals and experience part of the foreign culture. Volunteers enjoyed the scenery of the forest, river and waterfalls, as they picked up trash and debris along the river. - Station Volunteers look for trash at Futashika Umezu Falls, in Futashika, Yamaguchi Prefecture, Japan, Oct. 16, 2015. The Single Marine Program at Marine Corps Air Station Iwakuni, Japan, provides residents volunteer opportunities to build relations with Japanese locals and experience part of the foreign culture. Volunteers enjoyed the scenery of the forest, river and waterfalls, as they picked up trash and debris along the river.