Head out on an inflatable six person raft down the river tryweryn for a white water rafting taster experience in wales hurl down two action packed runs down the upper tryweryns white water rapids the rapids are graded level three to four on the uk s white water grading system which starts at one a few splashes and goes up to six too rough to offer commercially so get ready for a white knuckle ride that will have you screaming with sheer excitement this adrenaline fuelled activity is per