The annual Blackberry Arts Festival celebrates the delicious blackberry! Blackberry arts, food and drink are the fare at this popular event in downtown Coos Bay. Featuring live music with the Blackberry Jam all weekend long! Bring the whole family to downtown Coos Bay for the Blackberry Arts Festival, August 25 and 26 2018. Toyota invites you to help create art in motion, by coloring a Blackberry Arts Festival-themed Toyota Prius â car and pens provided. Toyota, Let's Go Places!