Kasumigaura-City	http://www.city.kasumigaura.ibaraki.jp
		Tsuchiura-City	http://www.city.tsuchiura.ibaraki.jp
		Tamatsukuri-Town	http://www.town.tamatsukuri.ibaraki.jp
		Tsuchikura-City tourist association	http://tutiura.727.net/
		Tamatsukuri-Town tourist association	http://www.tamatsukuri.or.jp/kankoukyoukai/kankokyokai-top.htm
		Kasumigaura River Office	http://www.ktr.mlit.go.jp/kasumi/