From ArborWiki

Delhi Metropark is a 53-acre park on the Huron River located five miles northwest of Ann Arbor, with picnic areas, two picnic shelters, swings and slides, river fishing and softball diamonds. A children's playground features an adventure playship, ride-on toys and swings.

There is a public canoe portage over the Delhi Rapids, and a canoe livery with runs to Hudson Mills Metropark.

Note that the bridge over the Huron River at Delhi is out, so the best entrance is via Miller Road to East Delhi Road.

http://www.metroparks.com/parks/pk_delhi.php