Spirit of the Moselle deck 4 plan (Sundeck-Pool)

Navigation Bridge (called "Wheelhouse" on riverboats) is passenger accessible and telescopic. The entire structure is lowered when the ship passes under low bridges.

Sundeck is a large-sized open-air deck space with a fore-located Terrace Lounge (also hosting alfresco dining with deck barbecues, full bar service is provided by the Panoramic Lounge's staff), midship shaded seating area (4 retractable awnings, deckchairs, tables), spacious sunbathing area (with loungers and low tables), deckgames area (with Giant Chess Board) and an aft-located Jacuzzi (outdoor whirlpool hot tub).

One glass elevator (midship-located passenger lift) connects all cabin decks. All decks are interconnected via stairs (forward, midship and aft), including a grand staircase in the Atrium (midship).

Sun Deck is accessible only via stairs from Upper Deck (deck 3).