Yes. Some crematoria have a viewing area that overlooks the crematory, where you may witness the committal taking place. Others may have a room equipped with CCTV enabling all of those in the room to clearly see the committal whilst other crematoria may allow a supervised group into the crematory to witness the committal. The Crematorium must be informed that you wish to witness the committal when the cremation is booked, so that staff can be informed, who will then make the necessary preparations on the day.