While CruiseMapper.com has been known to "get it wrong" in the past, it speaks of the simulator being on Deck 15.
https://www.cruisemapper.com/deckplans/Coral-Princess-545/deck15-130
The Bar & Grill (complimentary fast food bar- burgers, hotdogs, chicken breasts, fries, bratwurst/drinks are extra; open 11 am - 9 pm)
Movies Under the Stars (huge LED screen outdoor cinema with complimentary popcorn-cookies-milk in the evening)
Princess Links (9-hole mini-golf course putting), Golf Simulator, Tennis Tables
Platinum Studio (B&W photos/portraits studio sessions)
The Sanctuary (aft-located, adults-only sundeck, upper level 2 of 2)