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: ONLINE ONLY.., NY, .United StatesSee map: Google Maps 2025 I’m Your Huckleberry 1M 5K 10K 13.1 26.2 - Benefits First StarDates: 08/30/202509/27/202510/25/2025Show more datesHide these dates11/29/2025Time: 9:00AM Location: ONLINE ONLY.., NY, .United StatesSee map: Google Maps 2025 Race Alotl for the Axolotl 1M 5K 10K 13.1 26.2 - Benefits World Wildlife FundDates: 07/12/202508/16/202509/27/2025Time: 9:00am Location: BioBlitz at Almaden Quicksilver19535 Mockingbird Hill Ln EntranceSan Jose, CA, 95120United StatesSee map: Google MapsPhone:408.755.6159 Almaden Quicksilver BioBlitzDates: 04/27/2025Time: 9:00am - 11:30am Organization: Alpengirl CampLocation: 214 E Mendenhall StBozeman, MT, 59715United StatesSee map: Google MapsPhone:406-570-6312 Alpengirl Adult Women's AdventuresDates: 08/20/202508/21/202508/22/2025Show more datesHide these dates08/23/202508/24/202508/25/202508/26/202508/27/202508/28/202508/29/202508/30/202508/31/202509/01/202509/02/202509/03/202509/04/202509/05/202509/06/202509/07/202509/08/202509/09/202509/10/202509/11/202509/12/202509/13/202509/14/202509/15/202509/16/202509/17/202509/18/2025Time: 8:00AM Organization: San Francisco Bay Wildlife SocietyLocation: PO Box 234Newark, CA, 94560United StatesSee map: Google Maps Earth Month BioBlitz at the EECDates: 04/20/2025Time: 10:30AM Organization: Live Earth FarmLocation: 1275 Green Valley RdWatsonville, CA, 95076United StatesSee map: Google MapsPhone:(831) 763-2448 Earth Month Volunteer Day - Live Earth Farm Dates: 04/24/2025Time: 10:00 am - 12:30 pm Organization: Blue House FarmLocation: 950 La Honda RoadSan Gregorio, CA, 94074United StatesSee map: Google Maps Farmstand - Blue House FarmDates: 04/20/202504/26/202504/27/2025Time: 11:00 - 4:00pm PST Organization: CuriOdysseyLocation: 1651 Coyote Point DriveSan Mateo, CA, 94401United StatesSee map: Google MapsPhone:650-342-7755 First Friday Nights - CuriOdyssey Dates: 05/02/202506/06/202507/04/2025Time: 5:00 - 8:00pm PST Organization: Keep Coyote Creek BeautifulLocation: 5273 Prospect Rd #304San Jose, CA, 95129United StatesSee map: Google MapsPhone:408.755.6159 Hellyer County Park BioBlitzDates: 05/18/2025Time: 9:00am-11:30am Organization: Falling Creek CampLocation: 816 Falling Creek Camp Rd.Zirconia, NC, 28790United StatesSee map: Google MapsPhone:828-692-0262 Kickoff May Father/Son Weekend at Falling Creek CampDates: 05/09/202505/10/202505/11/2025Time: 5:00PM Organization: Falling Creek CampLocation: 816 Falling Creek Camp Rd.Zirconia, NC, 28790United StatesSee map: Google MapsPhone:828-692-0262 May Father/Son Weekend 1 at Falling Creek CampDates: 05/16/202505/17/202505/18/2025Time: 8:00AM Organization: Falling Creek CampLocation: 816 Falling Creek Camp Rd.Zirconia, NC, 28790United StatesSee map: Google MapsPhone:828-692-0262 May Father/Son Weekend 2 at Falling Creek CampDates: 05/23/202505/24/202505/25/2025Time: 8:00AM Organization: Lindsay Wildlife ExperienceLocation: 1931 First Avenue Walnut Creek, CA, 94597United StatesSee map: Google MapsPhone:(925) 935-1978 Newt Hikes - Lindsay Wildlife ExperienceDates: 05/18/2025Time: 9:00 am - 11:00 am Organization: Virtual Run Events powered by Moon JoggersLocation: PO BOX 1898McDonough, GA, 30253United StatesSee map: Google Maps Race Through America Series - Collect a Medal from Each State!Dates: 04/26/202505/31/2025Time: 9:00am Organization: Elizabeth F. Gamble GardenLocation: 1431 Waverley St.Palo Alto, CA, 94301United StatesSee map: Google MapsPhone:650-329-1356 Spring Garden Tour - Elizabeth F. Gamble GardenDates: 04/25/202504/26/2025Time: 10:00am - 4:00pm Location: Weekes Park21782 Patrick Ave.Hayward, CA, 94544United StatesSee map: Google MapsPhone:510-583-4000 The Annual Earth Day Citywide Clean-Up & Community Fair - City of Hayward, CaliforniaDates: 04/26/2025Time: 8:30am - 1pm PDT Location: Echo Church118 Murphy AveSan Jose, CA, 93931United StatesSee map: Google MapsThe Trash Punx (Free eWaste Recycling Event) - The Trash PunxDates: 04/26/2025Time: 9 a.m. - 12 p.m. Organization: City of Berkeley, CALocation: 2180 Milvia StBerkeley, CA, 94704United StatesSee map: Google MapsPhone:5109815140 Tuolumne Family CampDates: 06/16/202506/17/202506/18/2025Show more datesHide these dates06/19/202506/20/202506/21/202506/22/202506/23/202506/24/202506/25/202506/26/202506/27/202506/28/202506/29/202506/30/202507/01/202507/02/202507/03/202507/04/202507/05/202507/06/202507/07/202507/08/202507/09/202507/10/202507/11/202507/12/202507/13/202507/14/202507/15/202507/16/202507/17/202507/18/202507/19/202507/20/202507/21/202507/22/202507/23/202507/24/202507/25/202507/26/202507/27/202507/28/202507/29/202507/30/202507/31/202508/01/202508/02/202508/03/202508/04/202508/05/202508/06/202508/07/202508/08/202508/09/202508/10/2025Time: Morning Organization: Youth Science Institute (YSI)Location: 296 Garden Hill DriveLos Gatos, CA, 95032United StatesSee map: Google MapsPhone:(408) 356-4945 Vasona Park Clean-up - Youth Science Institute (YSI)Dates: 04/26/2025Time: 10 am-12pm Organization: ConstellationsLocation: 30 Cold Spring Rd.Rock Hill, CT, 06067United StatesSee map: Google Maps Wild Child Society: A Luxury Family Summer Camp at Glacier National ParkDates: 08/03/202508/08/2025Time: 7:00 PM Organization: San Francisco Bay Wildlife SocietyLocation: PO Box 234Newark, CA, 94560United StatesSee map: Google Maps World Migratory Bird Day: The Role of Community ScienceDates: 05/11/2025Time: 11:30AM
