Cargo decks
There are many huge empty cargo bays on the Blue Dwarf's lower decks which are waiting to be filled. The cargo decks are wide open spaces used for storing many crates of cargo that the Blue Dwarf may be transporting to a destination, or just keeping for spares. The cargo decks are incredibly large rooms with high metal walls, perfect for stacking large boxes and crates high up.
Because of the amount of open space, the Cargo decks have been used for many other things. There is a lot of room to hold scientific experiments or even hold big functions and parties. Ambassador Seymour Niples has been known to use the huge empty cargo bays to play games of Golf and Croquet alone. The cargodecks are also perfect hangouts for badguys and invading parties due to the entire area impossible to be scanned by Holly.