Join this free leisurely walk along the Boise River for all colors of dogs (no doggie discrimination) to bring awareness to the plight of black dogs and cats in shelters, known as the Black Dog Syndrome. The afternoon will start with a fun costume contest for dogs, with winners winning a Patagonia Black Dog long sleeve T-shirt. Categories include best small dog in costume, best large dog in costume, most create costume, funniest costume, best overall costume, best black dog in costume, best pumpkin costume. Don't hold back, and humans should feel free to dress up, too. Meet in the grassy area near the east parking lot.