A royal engagement
Celebrate Queen Victoria's birthday with tea and crumpets at Cairnwood mansion. Enjoy carriage rides and tours with members of the Victorian Society in America dressed in period costume. Free admission; $5 carriage rides. 1005 Cathedral Rd., Bryn Athyn. 1 to 4 p.m. www.cairnwood.org; 215-947-2004.
"Sustainable Living in Action" will be at the forefront of Green Valleys Association's Envirofest. The celebration includes a 5K run/walk, exhibits, how-to clinics, interactive educational programs, and short films. Free. Welkinweir estate, 1368 Prizer Rd., Pottstown. 8:30 a.m. to 3 p.m. www.greenvalleys.org; 610-469-4610.
Down on the farm
Try your hand at writing with a quill during Boileau Festival Day at the Boileau Farmstead. Watch a traditional border collie sheep roundup and sample colonial-style cooking. Free. Byberry and Orangemen Roads, Upper Moreland. 11 a.m. to 3 p.m. 215-802-7443.
Two sisters separated at birth and raised in different countries are reunited in New York City after World War II in A Shayna Maidel at Stagecrafters. $15; $13 students. 8130 Germantown Ave., Philadelphia. 2 p.m. today; and 8 p.m. Thursday, Friday and Saturday. www.thestagecrafters.org; 215-247-8881.