Noon-5 pm, Aug. 6. Detroit Interfaith Outreach Network (DION), in association with its interfaith and civic partners, presents annual ‘Interfaith Urban-Suburban Unity Picnic.” Features will include folk singing, dancing, drumming, interfaith worship at 12:15, games and a Capoeira (martial arts) demonstration. Highlight is a potluck, centered on main entrees of grilled kosher hot dogs and hamburgers, hallal chicken and veggie burgers. Attendees are asked to bring a side dish made without peanuts and a lawn chair. Held in picnic shelter site on Central Avenue, across from Kids Playscape, at Belle Isle, Detroit. Free with 2017 state parks pass or purchase daily admission. RSVP: Rabbi Dorit, 248-556-6316.