of MS Peter Tchaikovsky deck 1 (Lower-Spa)
- Spa (Sauna Room)
- Cruise cabins from 101 to 120, all of which are Outside Staterooms with Porthole Windows (category Quad). Of these 20 rooms, currently none are available for booking.
- Aft on Lower Deck are located staff and crew cabins (quad staterooms with porthole windows and bunk beds), crew dining lounge and bar, service areas.