From Canalway post:

Experience the Cuyahoga River is all the ways summer has to offer at River Rally. Join Canalway on Aug. 8 at Hart Crane Park for riverside music, games, tours and boat rides to help you take advantage of one of Cleveland’s best assets- the Cuyahoga River!

Hart Crane Park, 1824 Merwin Ave, Cleveland
Aug. 8, 10 a.m. to 5 p.m.