St. Mark’s School is opening its skating rink to the public again this year during the school winter break. Parents looking for a fun and free activity can bring their kids to the free skate and “sticks and puck” sessions being offered until Jan. 4. The rink is at 25 Marlboro Road. To view the complete schedule of free rink times, visit www.southboroughrecreation.com. The rink will be closed on Christmas Eve, Christmas Day, New Year’s Eve, and New Year’s Day. Participants must bring their own skates and other equipment.