WILLIAMSPORT - Lock demonstrations at Lock 44 will be held Saturdays and Sundays from 2 to 3 p.m. through Sept. 3.
During the demonstrations, visitors will have a chance to learn about "locking through" and the lock tender's life.
The lock is just downstream from the Williamsport Visitor Center at 205 W. Potomac St.
The visitors center is open Wednesdays through Sundays from 9 a.m. to 4:30 p.m., and is closed Mondays and Tuesdays.
For more information, call 301-582-0813.