Spring is zipping into the station faster than a bullet train, so here’s the inside track on a weekend full of family fun. All aboard for little locomotive lovers at Caboose Days at the Southeastern Railway Museum. Get a bright start to your Saturday at the Color Run. Don’t miss International Pillow Fight Day in Grant Park, or the Spring Festival on Ponce to let loose and enjoy spring fever. Woot, woot! Caboose Caboose Days Two days of locomotive-themed activities include caboose rides, park train rides, and handcar rides. Children’s activities include a caboose scavenger hunt, temporary tattoos, a craft corner and refreshments served on the SCL caboose. Sat. & Sun., 10 a.m. to 5 p.m., Southeastern Railway Museum, Adults, $8; ages 2-12, $5; ages 1 and younger, free; caboose rides, $3; park train rides, $2; handcar rides, $1. All ages. Event details.

The Color Run Wear white and be your own moving canvas as you get bombarded by color running the 5K Color Run at Atlanta Motor Speedway. Also known as the Happiest 5k on the Planet, is a unique paint race that celebrates healthiness, happiness and individuality and boasts a start line that is its own pre-race party with music, dancing, warmup stretching and giveaways! Sat., 9 a.m., Atlanta Motor Speedway, $45 per person for teams (4+ individuals), $50 per person for individuals. All ages. Event details.

International Pillow Fight Day Bring your best friend (or worst enemy) and join the rest of the world in this international event! Soft pillows only and absolutely no feathers or you will be thrashed after it breaks. People will make new friends, re-unite with old ones, meet future lovers, and revel in the blissful one-ness of a free, fun, social gathering. Sat., 2 p.m., Grant Park, Free. All ages. Event details.

Spring Festival On Ponce Visitors will enjoy fine art and crafts, children’s area, live acoustic entertainment and local food and beverage concessions including “gourmet” food trucks. Sun., 11 a.m. to 6 p.m., Olmstead Linear Park, Free. All ages. Event details. Feeling stuck for spring break? Click here for some smart staycation ideas in and around Atanta. Or, click here for our list of spring break camps. –Phebe Wahl Photo courtesy of the Southeastern Railway Museum via Facebook