Can anyone recommend a good beach to swim in around Bangor and Holywood? I do realize that the water is terribly cold. My daughter is acclimating to the water as she is an open water marathon swimmer. I read some reviews on Ballyholme beach in Bangor and they indicated that the water quality was poor. Are there better beaches in Holywood? We would like to stay within walking distance to a beach, so we are still trying to decide where to stay. Any advice would be great. Thank you in advance.