Waterford Homes Tour and Crafts Exhibit. Friday, Saturday and next Sunday, 10 a.m. to 5 p.m. To reach Waterford, proceed west from the Beltway on Route 7 through Leesburg, turn right on Route 9, and right again on Route 662. Admission $3, children 12 and under free.

Georgetown Community Festival.

Saturday, noon to 5 p.m., O Street NW between 29th and 30th Streets and 29th Street between O Street and Dumbarton Avenue. Rain date, Oct. 14.

Like an antique jewel the village of Waterford adorns upper Loudoun County with a living preservation of the early 19th century, and next weekend offers Washingtonians their annual opportunity to explore the old Quaker village's inner workings. Eight Federal houses, including the tiny Joseph Keating residence, will be open for tour, 60 artisans and craftspeople will be demonstrating and offering their wares, the streets will be filled with music and a hearty country lunch will be on sale each day. It's all for the benefit of the Waterford Foundation, which is dedicated to preserving the village and its surrounding countryside.

There'll also be food, games, music and dancing in the streets next Saturday in Georgetown, this gathering for the benefit of the Restoration Fund of Mount Zion Cemetery, the 19th century black burying ground that was s