Yn ystod y blynyddoedd diwethaf mae nifer y dyfroedd ymdrochi dynodedig yng Nghymru wedi cynyddu i 103, ac yn ôl canlyniadau'r llynedd, Cymru sydd â'r ansawdd dŵr ymdrochi gorau ar ynys Prydain.
The water quality in Wales has improved over recent years as evidence in the River Basin Management Plans published in December 2015. One area I am particularly proud of in Wales is the quality of our bathing waters. In recent years the number of designated bathing waters in Wales has risen to 103, with last year’s results giving Wales the best bathing water quality in mainland Britain.