9/11 Anniversary • free
Commemorate the anniversary of Sept. 11 attacks with environmental projects organized by the Volunteer Center for Anne Arundel County. Wear sturdy shoes or boots (no flip flops), bring a hat, sunscreen, sunglasses and gardening gloves. Water and snacks provided. 8am-noon; start and park at the WWII Memorial on Rt. 450, Annapolis: rsvp: 410-897-9207; www.VolunteerAnneArundel.org, or email firstname.lastname@example.org.