SATURDAY, APRIL 8
Arlington County Invasive Plant program Join volunteers to remove invasive plants. First Saturdays, 9-11 a.m. at Haley Park. Second Saturdays, 2-4 p.m. at Gulf Branch Nature Center. Third Saturdays, 10 a.m.
FRIDAY, MARCH 31
Survival Skills: Fire Building For ages 8-12, learn how to find tinder and a sparking rock and make and use a bow drill. 4-5:15 p.m. Nature Center, 625 S. Carlin Springs Rd., Arlington. 703-228-6535