This is a two day festival at Confluence Park, right on the river. It’s amazing. Live music(really good bands) and lots of beer/wine :-) People just hang out on the grass or in the river. You can even swim(don’t drink the water). Activities include FREE stand up paddle board lessons and you can ride the rapids in a Kayak or a Tube if you«register» and get a wrist band. Again, free. Great for kids and adults curious about kayaking in rapids. There are also some exhibits showcasing cool gear and there is an art show. Read about it on their web site. And whatever money they do raise goes toward a great cause(The Greenway Foundation). Hopefully they do it again in 2015. It’s really am amazing time and its close to awesome stores/restaurants. It’s right on the bike path so if you can, ride there.