Time for the Boise River Boogie. No, it’s not a dance, it’s a duathlon. And it’s a fundraiser to help keep the river in good shape. Not that long ago, slaughterhouses in Garden City made the river run red. Raw sewage was dumped directly in the river. And the habitat suffered. Over time, valley residents began to clean up the river. Over the last eight years, the Boise River Enhancement Network has been working to keep the waterway healthy.