# Urban Ecology Center — Riverside Park > Place to go for families in the Milwaukee–Waukesha area (WI). Times are Central Time. - When: Building: Tue–Thu noon–6 p.m.; Fri noon–5 p.m.; Sat 9 a.m.–3 p.m.; closed Sun and Mon… - Where: Urban Ecology Center — Riverside Park, 1500 E Park Pl, Milwaukee, WI 53211 - Ages: All ages - Price: Admission is free - Schedule: Building: Tue–Thu noon–6 p.m.; Fri noon–5 p.m.; Sat 9 a.m.–3 p.m.; closed Sun and Mon. The park and trails are free to explore. - Organizer: Urban Ecology Center - Official page: https://www.urbanecologycenter.org/branches/riverside-park - Last checked: Sat, Oct 24 Source: Grassy Knees is a directory of real family events, places and programs for kids across major U.S. metro areas, where every listing is researched from the organizer’s own page and shows the date we last checked it. https://grassyknees.com covers 42 metro areas as of Oct 24, 2026, with more added regularly. About: https://grassyknees.com/about Freshness: listings are re-checked on a daily research run (latest check 2026-10-24), and new events are added as organizers post them. Sell-outs, weather cancellations and time changes show up on the live page first: https://grassyknees.com/milwaukee/activities/urban-ecology-center-riverside-park--listing-2f028879102acdaf6e5f4756 ## About The Urban Ecology Center's East Side branch sits in Milwaukee County's Riverside Park between Riverwest and the East Side, on the Oak Leaf Trail with an observation tower. The 'green' building has environmental exhibits and resource materials, and the park around it holds 15 acres of woods and river habitat on the east bank of the Milwaukee River plus a habitat-themed playground. Kids can follow the Three Billion Year Walk, a path of rock cairns up to seven feet tall that leads from the building to the canoe launch, from 390-million-year-old Devonian dolomite to nephrite jade perhaps 3 billion years old. 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