I am following this thread for my Mum, who needs a single cabin and has not sailed Saga before, but wants to give it a try. Can you explain the £90 pre-registration to me...should she do it? I have cruised a lot and tend to help her with bookings, but have no experience with Saga and how to get the best prices. As a single cruiser it is always relatively expensive, so I like to try and help her get the best deal possible. Thanks for any help/input.