Watch the qualifying races for the National Offshore One-Design Regatta race which is the longest running sailboar race in the United States. Sat & Sun, 9am - 4pm each day at the Annapolis Yacht Club. 410-263-9279
Plant sale and free tours of London Town's grounds. Saturday 8am - Noon at Historic London Town and Gardens, Edgewater. 410-222-1919; www.historiclondontown.org
Learn about the ecology of Bay tributaries while paddling the Muddy Creek and the Rhone River. Sat 9am - 11:30am at the Smithsonian Environmental Research Center, Edgewater. 301-238-2737.
Take part in the Edible Gardening Weekend at Homestead Gardens, Davidsonville. Demonstrations and informative talks Sat & Sun 10am - 4pm. 410-798-5000; www.homesteadgardens.com
Weekend craft show and plant sale at the Anne Arundel County Fairgrounds. Alson includes an antique tractor pull at noon on Sat, Sat & Sun 9:30am - 5pm; 410-923-3400
Historical Annapolis Foundation offers a tour of a dozen residential and commercial buildings in Annapolis and Anne Arundel county to see examples of enerty-saving tecnology and sustainable building materials. Sat Noon - 6pm 410-626-1033.
Lecture on the wide variety of native plants that attract, feed and protect wildlife, making your garden more Bay-friendly. Sat 1pm-3pm at Smithsonian Environmental Research Center in Edgewater, 301-238-2737.
Jug Bay Wetlands Sanctuary in Lothian will be offering fun facts about snakes, observing and searching for them on a hike. Sat 1pm-3pm 410-741-9330.
Saturday is Community Connections Day for Anne Arundel county. County Executive John Leopold offers a day long event highlighting county services and agencies. 1pm-4pm at Waugh Chapel Community Room, The Village, Gambrills. 410-222-2222; www.aacounty.org
Community Observing Night led by the AACC Astronomy Club Sat night at the Astronomy Lab, Anne Arundel Community College, Arnold. 410-777-1820
Spring to Street Festival, the first street festival of the year, will be held Sunday from 10am-6pm on Maryland Avenue and State Circle, Annapolis. 410-280-8891, www.marylandave.com
Farmers Market, featuring Maryland grown and produced food including eggs, chicken, beef, pork,produce, greens, baked goods, honey, jewelry and alpace products. Sun 12:30pm - 2:30pm at the first level of Nordstrom parking garage, Westfield Annapolis Mall. 410-222-7410.
St. John's College Community Chorus performs Bach's Mass in B Minor Sunday at 3pm. Great Hall, St. John's College, Annapolis; 443-716-4011