We're in beta! If you find a bug or have feedback, let us know in our 
Arizona State Parks & Trails
Arizona State Parks & Trails: Arizona250 Celebration at the Historic San Rafael Ranch
San Rafael State Natural Area Arizona
- April 11, 2026 at 7:00 AM
CommunityGeneral Science
recreation areas
within 25 miles
Apr 11, 2026
18 opportunities found! use fewer search filter criteria to find more opportunities
Filters
Maine School of Science and Mathematics (MSSM)
Maine School of Science and Mathematics (MSSM)
95 High Street, Limestone Maine
- Ongoing
WorkshopComputers & TechnologyGeneral ScienceMathematicsTechnologyIn School
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: City Nature Challenge Hike
Cave Creek Regional Park Arizona
- April 24, 2026 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
Estrella Mountain Regional Park Arizona
- April 22, 2026 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
Estrella Mountain Regional Park Arizona
- April 17, 2026 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
White Tank Mountain Regional Park Arizona
- April 23, 2026 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
Hassayampa River Preserve Arizona
- April 16, 2026 at 7:00 AM
CommunityGeneral Science
Maricopa County Parks and Recreation
Maricopa County Parks and Recreation: Guided Bird Hike (City Nature Challenge)
Estrella Mountain Regional Park Arizona
- April 24, 2026 at 7:00 AM
CommunityGeneral Science
Ocean Citizen Science Project Directory
Help sailors contribute to marine science worldwide
Anywhere
- Ongoing
Citizen ScienceOcean Water MarineNature & OutdoorsEcology & Environmentsailingscience outreachrecreational boatersfree range oceanenvironmental scienceplanktonghost netscoral reefsocean researchfamily expeditionsboating communitymarine conservationnurdle
CactusToCloud Institute
Reptiles of the Coachella Valley
Discover lizards, snakes, and other reptiles in the Coachella Valley region!
Multiple locations, including yours!
- Ongoing
Citizen ScienceNature & OutdoorsAnimalsEcology & Environmenttortoisesdesertreptilespalm desertsnakepalm springsmojave desertcolorado desertcoachella valleylizardindioreptileinaturalistsnakeslizardstortoise
12