78′ Riviera 78 Motor Yacht ‘BIG MAMA’

Yachtsmen International is delighted to present 2022 Riviera 78 BIG MAMA to the Australian market. A unique and exciting opportunity to own a superb Riviera 78 without the wait (next available new build 78 anticipated 2027), BIG MAMA is a premier vessel that flawlessly delivers high performance paired with luxurious on-water living.

After her head-turning ‘Gulfstream Blue’ profile, the first impressive element of BIG MAMA you’ll notice is superb the teak-laid hydraulic swim platform. A true highlight of her build, it features a three-step design that spans the full width of the platform and can be lowered into the water to make access simple both for swimming and launching water sports equipment. BIG MAMA carries with her a four-meter BRIG Eagle RIB with 60hp Honda outboard engine. Two doors are built into the transom – the first, a watertight door on the starboard side provides access to the full-height engine room and crew quarters. A second larger door on the port side lifts to reveal a garage for water sports, diving and fishing equipment, with a discrete, in-built shower for added convenience.

Stepping up from the swim platform, you can’t help but be in awe of BIG MAMA’s expansive exterior spaces which offer plenty of opportunity for sunbathing and socialising. Her aft deck, accessible both by aft steps and via wing doors to both port and starboard, features a large al fresco dining area, which is enclosable via a weather canvas, allowing for it to be enjoyed year-round. Her non-standard cockpit layout encompasses a lounge and dining table in natural teak with folding chairs aft, refrigeration, wet bar, BBQ and icemaker starboard, and a bar counter with stools at galley drop down window.

An electric sliding door opens to reveal the interior of the generous saloon deck with its large U-shape galley immediately to starboard, positioned equally to serve guests on the aft deck or in the saloon. A large window slides down electrically to open the galley to guests on the deck aft.  Thoughtfully crafted for functional living and interactivity, BIG MAMA’s open-plan layout is well-appointed, with premium fabrics and finishes utilised extensively throughout. The main saloon is located forward; to starboard is a custom sofa with an ottoman and to port, a chaise longue. A 65” television is discretely hidden in the ceiling and is also hooked up to the Raymarine navigation equipment—charts and cruising information can be shown to guests at the touch of a button. Full-size fridges can be found both port and starboard, while large panoramic windows deliver unobstructed views and a generous flow of natural light. Further enhancing the space is the fully equipped wet bar and remote-controlled electronic shades, while a large, elegant rug ties everything together, creating a warm and welcoming ambience that invites you to stay longer.

A curved forward staircase leads you below deck to her luxurious accommodations, catering for up to seven guests across four suites. The full-beam mid-ship master suite features a king-sized bed, black-out blinds, wireless charging stations and a hidden refrigerated bedside drawer. Extended hull windows to both port and starboard provide an abundance of natural light, enhancing the space and creating a seamless connection to the outdoors, while a striking timber feature adorning the aft wall adds an elegant touch to her overall finish. A cedar-lined walk-in closet provides ample storage and an ensuite is fitted with his-and-hers sinks and a rain shower. Each of her guest cabins also enjoys ensuites and cedar-lined storage, with a VIP forward featuring a double berth and a portside guest cabin with two side-by-side single berths that can slide together to form a double at the touch of a button. A fourth cabin to starboard has been converted to a very functional private office, with a Pullman berth hidden in the aft bulkhead as an additional accommodation option.

Returning to the main saloon, BIG MAMA is fitted with an internal timber staircase which ascends to the bridge deck with its super-yacht like dash accommodating four large navigation screens. The leather captain’s chair is on the yacht’s centreline with companion chairs on either side. Immediately to starboard of the captain is an extended console with engine controls. An electrically operated double sliding and stacking glass door opens up to connect the bridge interior and exterior as one space. Standing apart from other models in the series, BIG MAMA features a custom sunbathing deck aft which boats a large sun pad and a well-equipped wet bar. The entire space is semi-shaded with a Bimini and hardtop, allowing for the ultimate vantage point and breath-taking views while cruising. Delivering yet another great living/entertaining area, BIG MAMA’s foredeck offers plenty of plush seating, with a full sun awning that can be raised at anchor.

Looking to her performance, BIG MAMA is powered by dual 1,800hp MAN engines delivering top speeds in excess of 30knots and cruising at 24. With 10,200 litres of fuel available, she is capable of cruising for more than 1,000 nautical miles, enabling you to explore more in absolute confidence.


View BIG MAMA 3D Walkthrough via the link below: 

Riviera 78 Big Mama (matterport.com)


For those seeking the best in on-water enjoyment, BIG MAMA presents unparalleled luxury, highly sought-after custom features, and top-tier performance. With warranties, impeccable maintenance and unique features, she’s a remarkable opportunity to own a yacht that stands out in style and sophistication. Please contact us to arrange a private viewing of this magnificent cruising motor yacht.




Year Built




Display Price


Engine Hours

368+ approx.




81' | 24.9M

Yacht Type

Power Monohull

Main Engines

Dual 1,800hp MANs


[3] Staterooms with ensuites, [1] office with occasional Pullman, [1] Twin bunk cabin aft for crew – sleeps 9 total

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