9 a.m.: Treasure hunt
What more pastoral way to spend a Saturday morning than perusing castoffs in the deep green of Wyman Park? The Wyman Park Community Association holds its annual flea market until 2 p.m. along Tudor Arms Avenue between 37th and 39th streets. Call 243-0055.
10 a.m.: Rock flock
"Fossils and Dinosaurs of Maryland" is the theme of this year's Mineral Swap and Sell, sponsored by the Natural History Society of Maryland. Items for sale include mineral specimens, fossils, crystals, rare species and ores. Until 5 p.m. in Kraushaar Auditorium at Goucher College.
10 a.m.: Old, beautiful
The Baltimore Museum of Art's annual antiques show, featuring 40 dealers and a selection of furniture, silver, textiles, paintings, prints, ceramics and jewelry, takes place from 11 a.m. until 5 p.m. today and tomorrow at the museum on Art Museum Drive. Admission: $6 at the door. Call 323-9454.
10 a.m.: Spring fling
The Towsontown Spring Festival offers something for everyone: wine garden, beer garden, pony rides, jugglers and more. The nearby Bykota Senior Center holds an open house with an appearance by the Children's Chorus of Maryland and a strawberry festival. The main festival takes place until 6 p.m. today and from 1 p.m. until 6 p.m. tomorrow in the heart of Towson. Call 825-1144. The Bykota open house takes place beginning at 1 p.m. today at the center, 611 Central Ave. Call 887-3094.
The International Students Association at Morgan State University sponsors its second annual festival with a fashion show, TNT Steel Band, Apple John the Clown, cultural dance performances, martial arts demonstrations and a limbo contest.
1 p.m.: Day for clay
At CLAYFEST, participants receive instruction in hand-building clay pieces, use of the potter's wheel and decoration of prepared clay forms. There will also be demonstrations and instruction in the art of Raku firing. Until 4 p.m. at Baltimore Clayworks, 5706 Smith Ave. in Mount Washington. Call 578-1919.
12:30 p.m.: Pet parade
In celebration of National Pet Week, Columbia's sixth pet parade takes place at the lakefront of Lake Kittamaqundi. Children are encouraged to bring dogs, cats, birds, fish, hamsters and stuffed animal friends. Registration takes place between 12:30 and 1 p.m. The parade begins about 1:15 p.m. The $2 registration fee will be donated to Howard County Pets on Wheels.
To be included in this calendar, please send information about events (including address and a weekend phone number), along with pictures or slides, at least two weeks prior to publication to What's Happening, The Saturday Sun, Baltimore 21278. No phone calls, please.