March 12 and 21 Sea Squirts - Chesapeake 1, 2, 3, 10:30 a.m. to 11:00 a.m., two opportunities this month to play the counting game and learn some of Tom Wisner's songs from Singing the Chesapeake, free program for children 18 months to three years and their caregivers, Calvert Marine Museum, Solomons, Md. (410) 326-2042 ext. 41. www.calvertmarinemuseum.com
