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Anyone can geocache by using GPS devices to find containers with “treasures” in the outdoors! This popular program brings geocachers together to improve nature by cleaning up litter at geocache-friendly spaces. Captain will beam with pride while you work together to leave the world a better place! Geocaching Cache in, Trash Out (CITO) Event Anyone can geocache by using GPS devices to find containers with “treasures” in the outdoors! This popular program brings geocachers together to improve nature by cleaning up litter at geocache-friendly spaces. Captain will beam with pride while you work together to leave the world a better place!

Participate in our annual BioBlitz by working with wildlife experts and community volunteers to find, identify, and record plant and animal species that live at Masonville Cove. Please follow the registration to the National Aquarium's page! BioBlitz with the National Aquarium 2022 Participate in our annual BioBlitz by working with wildlife experts and community volunteers to find, identify, and record plant and animal species that live at Masonville Cove. Please follow the registration to the National Aquarium's page!

Come and join us to learn, discuss, and connect during a special book club event at the Masonville Cove Environmental Education Center in Baltimore. Prodigal Summer is the fifth novel by American author Barbara Kingsolver. Nature Inspired Book Club: Prodigal Summer by Barbara Kingsolver Come and join us to learn, discuss, and connect during a special book club event at the Masonville Cove Environmental Education Center in Baltimore. Prodigal Summer is the fifth novel by American author Barbara Kingsolver.

Usher in the beautiful fall weather and windy days to come by creating a windchime! While our chimes won't make magical melodies, they'll still add a colorful touch to any garden or windowsill. All participants will receive a take-home supply kit. Registration required. Nature for Kids (Self-Lead) Usher in the beautiful fall weather and windy days to come by creating a windchime! While our chimes won't make magical melodies, they'll still add a colorful touch to any garden or windowsill. All participants will receive a take-home supply kit. Registration required.

City Nature Challenge is an annual community science competition for cities to find and document plants and wildlife found in urban areas. We are calling on everyone to join us in exploring, identifying and documenting the wildlife around you! City Nature Challenge at Masonville Cove 2026 City Nature Challenge is an annual community science competition for cities to find and document plants and wildlife found in urban areas. We are calling on everyone to join us in exploring, identifying and documenting the wildlife around you!

Led by guides from Nature Worx, we will explore the beautiful grounds at Masonville Cove, slowly walking and pausing frequently, using all of our senses to drop out of doing mode and into being mode. Learn simple, but profound ways to make space for yourself to breathe and savor the natural world. Rescheduled Nature Walks at Masonville Cove Led by guides from Nature Worx, we will explore the beautiful grounds at Masonville Cove, slowly walking and pausing frequently, using all of our senses to drop out of doing mode and into being mode. Learn simple, but profound ways to make space for yourself to breathe and savor the natural world.

Join us to clean up the stream and living shoreline at Masonville Cove. Make a difference while learning about the causes and effects of marine debris and how you can help! Project Clean Stream Join us to clean up the stream and living shoreline at Masonville Cove. Make a difference while learning about the causes and effects of marine debris and how you can help!

Celebrate Trails with the Friends of Masonville Cove! Join us on Saturday for a day of exploring our scenic trails, fun nature activities, and friends. Highlights in the full description. All our programs are free, register today! Celebrate Trails with Friends Celebrate Trails with the Friends of Masonville Cove! Join us on Saturday for a day of exploring our scenic trails, fun nature activities, and friends. Highlights in the full description. All our programs are free, register today!

Join Masonville Cove and Baltimore Green Space in celebrating National Bat Week! Did you know over 300 species of fruit depend on bats for pollination? Come hang with the bats to learn more about our nocturnal friends! Gear will be provided and registration is required for this free event. Evening Bat Walk with Baltimore Green Space at Masonville Cove Join Masonville Cove and Baltimore Green Space in celebrating National Bat Week! Did you know over 300 species of fruit depend on bats for pollination? Come hang with the bats to learn more about our nocturnal friends! Gear will be provided and registration is required for this free event.

Did you know bats can act as pest control, pollinators, or even be gardeners? Join us for a sunset walk with Baltimore Green Space to listen to bats and learn how they help us! Halloween costumes welcomed, registration is encouraged to secure your spot. Masonville Cove Bat Walk with Baltimore Green Space Did you know bats can act as pest control, pollinators, or even be gardeners? Join us for a sunset walk with Baltimore Green Space to listen to bats and learn how they help us! Halloween costumes welcomed, registration is encouraged to secure your spot.