Coosa River Basin Initiative’s River Revelry — A Biodiversity Bash will be Saturday from 6 to 11 p.m. at Heritage Park. The event will feature live music, silent and live auctions, boat rides on the river, the Seven Hills Rotary Club Ducky Derby, the Blue Sky Outfitter Recycled Raft Race, and a Cancer Navigators six-mile canoe and kayak paddle on the Etowah River. For more information call 706-232-2724 or visit www.coosa.org.