Normal
I have never cruised on the Summit, but I have been Over a Galley. The noise was like metal rolling over metal about 2 to 3 a.m. in the morning which woke us up out of a sound sleep. After taking a galley tour, I realized it was the Rolling Bread racks/ovens that were being moved each morning. If you can, you may wish to move. If not bring ear plugs as mentioned.
