Home| May 19 Saturday, Apr 19 > Organization: Retzer Nature Center - Waukesha County Parks, WILocation: S14W28167 Madison StWaukesha, WI, 53188United StatesSee map: Google MapsPhone:(262) 896-8007 Story Hike at the Retzer Nature CenterThe event has already taken place on this date: 04/30/2025Time: Trail Open from Sunrise - 10 pm Organization: National Park ServiceLocation: 1849 C St NWWashington, DC, 20240United StatesSee map: Google MapsPhone:202-208-6843 2025 Free Entrance Days in the National ParksDates: 06/19/202508/04/202509/27/2025Show more datesHide these dates11/11/2025Time: See website for details. Location: Milwaukee Winter Farmers Market514 S Layton BlvdMilwaukee, WI, 53215United StatesSee map: Google MapsPhone:(414) 687-0122 Open Family Play at the Winter Farmers MarketThe event has already taken place on this date: 04/19/2025Time: 9 am - 2 pm Location: Urban Ecology Center - Menomonee Valley3700 W Pierce StMilwaukee, WI, 53215United StatesSee map: Google MapsPhone:(414) 964-8505 Take it Outside Day - Fishing at the Urban Ecology CenterThe event has already taken place on this date: 04/19/2025Time: 10 am - 2 pm Location: Multiple Locations Throughout Milwaukee, WI.Milwaukee, WI, 53203United StatesSee map: Google Maps MKE Health & Wellness EARTH DAY Clean UpThe event has already taken place on this date: 04/19/2025Time: 10 am - 2 pm Organization: Cactus ClubLocation: 2496 S Wentworth AveMilwaukee, WI, 53207United StatesSee map: Google MapsPhone: (414) 897-0663 Open Decks Series – Vinyl Edition at the Cactus ClubThe event has already taken place on this date: 04/19/2025Time: 1 pm