 Radio advertising is a key part of our advertising mix, and we absolutely encourage any business looking to grow to give Blue Water a call. Radio reaches over 90% of everyone in the River Region. Shouldn't your ads be out there where your customers are? Call us to find out more. Blue Water Broadcasting. Local folks helping local business. On FM, on your smartphone, and online. The River Region's most trusted voice. Newstalk 93.1 FM WACV.