Saturday, July 29: Summer Jam Extravaganza Health and Craft Fair – Hilo.  Featuring vendors from the Big Island and the State of Hawai`i. Edith Kanakaole Tennis Stadium, 350 Kalanikoa St., Hilo. 9 a.m. to 4 p.m. This event is free to the public. A portion of the proceeds from this event will go to support the Big Island Substance Abuse Council. For more information, call (808) 896-1620 or visit http://www.malamaponoevents.com/.