All Day

CCAN Annual Polar Bear Plunge

National Harbor 802 National Harbor Blvd, Fort Washington

(MD) (Chesapeake Climate Action Network) We're freezing for a reason! CCAN’s Polar Bear Plunge is a day full of laughter and camaraderie as hundreds of climate activists come together in support of our climate campaigns. Through peer-to-peer fundraising, Plungers help raise over 30 percent of the individual donations that power our work in the year ahead. Sign up now to ...

Winter Birding at Lake Audubon

Walker Nature Center 11450 Glade Drive, Reston

(VA) (Northern Virginia Bird Alliance) Join Northern Virginia Bird Alliance guides Robin and Luke for a winter birding outing at Lake Audubon! Birders of all experience levels are welcome. The planned walking route includes a mix of woodland trail and paved surfaces, with both flat and hilly sections.

Bird Walk at Kingman

Kingman Island

(DC) (DC Bird Alliance) Join DC Bird Alliance for a winter bird walk through Kingman and Heritage Islands!

Winter Stream Ecology Hike

Long Branch Nature Center at Glencarlyn Park 625 S Carlin Springs Rd, Arlington

(VA) (Arlington Parks) Bundle up and join us for a winter nature hike full of frosty discoveries! Ever wonder what fish do when streams freeze over? How life keeps moving under the ice? On this guided walk, we’ll explore stream ecology in winter and uncover how aquatic life—especially fish—adapts to survive the freezing temperatures, slower currents, and reduced food supply. ...

$7