Start at Lock 29 Trailhead on Mill Street and follow the kiosk path toward the Towpath. A footbridge crosses one end of the chamber, and another interpretive panel sits above it, reached by stairs or trail. This is a popular shared access point, so parking can fill. The Towpath continues north toward Lock 30 and south toward Lock 28 and Deep Lock.
The adjacent trailhead is listed with accessible flush restrooms and drinking water. Visitor reports differ on finding the restroom, so check before relying on it; those facilities are at the trailhead, not inside the lock.