MS VIVA One deck 4 plan (Sundeck-Pool)

The fore-located Navigation Bridge (called "Wheelhouse" on riverboats) is passenger accessible and telescopic (can be lowered for passing under low bridges). Near the Wheelhouse are stored electric bikes available for rent (complimentary/limited number).

The ship's sundeck area is fitted with 5x retractable awnings (canopy-shaded seating areas with loungers and deckchairs), a fore-located Alfresco Lounge (full bar service from the Panorama Lounge below), an aft open-air deck games area (with Putting Green Mini-Golf) and an aft sunbathing area (with Jacuzzi/spa pool, sun loungers, showers).

One Elevator (passenger Lift) interconnects decks 1-2-3 (Emerald-Ruby-Diamond). A Stairlift connects decks 3-4 (Diamond-Sundeck).

All structures on Sun Deck (Wheelhouse, awnings, windscreens, railings) are collapsible and lowered when the riverboat passes under low bridges.