The Orpheus Chamber Singers’ Advent Lessons and Carols is Thursday, Dec. 7, at 8 p.m. Head to SMU’s Perkins Chapel to hear four works from their upcoming holiday program “A British Christmas.”

The Northaven Trail finally is expanding. A groundbreaking ceremony is slated Saturday, Dec. 9, from 10 a.m.-noon. at Royal Park Pavilion.

The annual Trains of Northpark exhibit is up and running at NorthPark Shopping Center.  Come see the most elaborate miniature train exhibit in Texas, with proceeds going to the Ronald McDonald House of Dallas.

The shopping center’s Scrooge Puppet Theatre is a longtime tradition for the entire family. See Scrooge, played by puppeteer Will Schutze, near Dillard’s between 11:30 a.m.-8 p.m. Performances are held once every hour.