8-11pm, Mother’s Peninsula Grill, Arnold: threeofakindmusic.com.

The City of Bowie will kick off the Juneteenth holiday weekend with the screening of the movie Hidden Figures at Allen Pond Park. The movie honors the contributions of African American women in the field of astrophysics at NASA in the early 1960s. These women were known as "human computers" and were instrumental in the […]

7am-noon, Riva Rd. & Harry Truman Pkwy, Annapolis: aacofarmersmarket.com.

8am-noon, North Beach Senior Center: 301-855-6681.

Meet museum educators for a short lesson on local Miocene fossils and what to look for along the beach. Then explore the beach to search for fossilized shells, bones, and shark teeth. After collecting, work with staff to identify them (ages 8+). 9am-noon, Cove Point Lighthouse, Lusby, $15, RSVP: calvertmarinemuseum.com

Learn about initiatives around town, plus clean up the town park and waterfront, win eco-prizes, tour a pollinator garden, learn about bluebirds and build a birdhouse and shop native plant sale from the North Beach House and Garden Club. 9am-noon, Mark R. Frazer Sunrise Garden, North Beach: 410-646-2426.

Learn to compost with Anne Arundel County Master Gardeners and receive a free compost bin. 10am, weather permitting, Wildwood Trail, Quiet Waters Park, $6 parking: [email protected]

Help remove invasive English ivy in the park; bring gloves, loppers, small handsaws, water, and plenty of bug spray. 10am-noon, boat launch, Truxtun Park Rd., Annapolis, RSVP: [email protected].

Join archaeologist Stephanie Sperling for a paddling tour to learn about the archaeological and cultural history along the river; bring water, sunscreen, hat, sunglasses, and wear closed-toe shoes that can get wet& muddy (ages 13+). 10am-2pm, Emory Waters Nature Preserve, Jug Bay Wetlands Sanctuary, Lothian, $25, RSVP: jugbay.org

See this all-member show which reflects our love affair with coastlines in the Mid-Atlantic and beyond as represented in paint, photos, pottery, jewelry, glass fiber, and woodwork. Thru June 26. 11am-5pm, Tue-Sa, noon-4pm Su, North End Gallery, Leonardtown: northendgallery.com.