Taste Maryland Grapes

Sample the products of 10 Maryland wineries, listen to music by Deanna Bogart, the Kelly Bell Band and other local acts, and explore an arts and crafts fair at the 12th annual Wine in the Woods festival Saturday and Sunday from noon to 6 in Symphony Woods, next to the Merriweather Post Pavilion off Broken Land Parkway in Columbia. Admission at the gate is $20 for ages 21 and up and includes a wine glass and 10 taste tickets. Ages 3 to 20 pay $5 (no tastings), younger free. Call 410-313-7275.

Guppy Gala at National Zoo

The National Zoo is hosting its Guppy Gala Friday from 6 to 8:30. This annual fundraising extravaganza for children and families includes musical entertainment, costumed cartoon characters, information booths, moon bounces, a rock climbing wall, refreshments and other activities. Tickets are $28 at the gate. The zoo is at 3001 Connecticut Ave. NW (Metro: Woodley Park-Zoo or Cleveland Park). Call 202-673-4613.

Outdoor Afternoons

* The Maryland-National Capital Park and Planning Commission and the Montgomery Parks Foundation are hosting a Spring Farm Festival Saturday from 11 to 4 at the Agricultural History Farm Park, 18400 Muncaster Rd., Derwood. Antique farm equipment will be displayed, horses and mules will plow fields, reenactors will demonstrate 19th-century farm skills, and there will be farm animals, working sheep dogs, gardening talks, entertainment, a crafts fair, food vendors, children's games and an archaeological dig. Parking is $10 per car. Call 301-924-4141.

* Celebrate the 12th annual International Migratory Bird Day Saturday from 10 to 3 at the National Wildlife Visitor Center, in Laurel on Powder Mill Road between Route 197 and the Baltimore-Washington Parkway, with live birds, nature walks, tram tours of the Patuxent Research Refuge, puppet shows and two screenings of the award-winning feature-length documentary "Winged Migration." Admission and most activities are free; tram rides cost $3, seniors $2, under 12 $1. Call 301-497-5763.

Behind the Garden Gates

Visit gardens at seven private homes and Evermay Estate in Georgetown during the Georgetown Garden Tour, sponsored by the Georgetown Garden Club, Saturday from 10 to 5. All are on the east side of Wisconsin Avenue NW within walking distance of Christ Church's Keith Hall, at 31st and O streets NW, at which tickets may be purchased during tour hours and refreshments will be served from 2 to 4. Admission is $30; proceeds benefit several garden-related charities. Call 202-965-1950.

Arts Festival in Bethesda

More than 120 artists and artisans will offer their paintings, sculpture, furniture, jewelry, photographs and other handiwork at the Bethesda Fine Arts Festival, Saturday from 10 to 6 and Sunday from 10 to 5 in the Woodmont Triangle section of downtown Bethesda, along Norfolk and Auburn avenues (Metro: Bethesda). Local bands will entertain both days, and neighborhood restaurants will offer their specialties. Admission is free. Call 301-215-6660.