Walla Walla Balloon Stampede - A hot air balloon rally that brings up to 45 balloon pilots to Walla Walla. - http://www.wwchamber.com/chamber_info/events/balloon_stampede.htm
Walla Walla Valley Prop Twisters - Model aviation club information, meeting notes, news, pictures, calendar, and newsletters. - http://www.proptwisters.org/