Marine vessel comprising a superstructure-integrated backspray mitigation apparatus, said marine vessel having a hardtop and a cockpit area disposed below the hardtop, said apparatus comprising: a spoiler that redirects airflow from above said hardtop to an area below said hardtop in proximity to said cockpit area; said spoiler including left and right side structural members attached to the vessel hardtop, and an arch extending between said left and right side structural members, said arch having an upper surface, and a lower surface disposed in vertically spaced relation with the vessel hardtop; said spoiler arch defining a leading edge disposed above the vessel hardtop, and a trailing edge disposed rearwardly of the hardtop and above the cockpit area; an air ducting channel having an inlet and an outlet; said inlet disposed at said leading edge, said air ducting channel inlet having: an upper boundary defined by the lower surface of said arch; a lower boundary defined by the vessel hard top; and opposing side boundaries defined by said left and right side structural members; said outlet being angularly oriented to discharge air downward and rearward relative to the hardtop; said air ducting channel inlet receiving air passing over said hardtop due to movement of the vessel, and said air ducting channel outlet discharges said air below the hardtop in proximity to said cockpit area thereby mitigating backspray from entering said cockpit area; wherein the spoiler is adapted to redirect hardtop air flow into the cockpit area to mitigate and prevent deleterious reverse air and water vapor flow from occurring and entering the cockpit area; characterized in that the hardtop defines an opening, and an openable flap disposed in covering relation with said opening, said flap being configured to be mechanically actuated between a closed position wherein said flap is disposed in flush covering relation with said opening, and an open position wherein said flap diverts air from said air ducting channel through said opening. a spoiler that redirects airflow from above said hardtop to an area below said hardtop in proximity to said cockpit area; said spoiler including left and right side structural members attached to the vessel hardtop, and an arch extending between said left and right side structural members, said arch having an upper surface, and a lower surface disposed in vertically spaced relation with the vessel hardtop; said spoiler arch defining a leading edge disposed above the vessel hardtop, and a trailing edge disposed rearwardly of the hardtop and above the cockpit area; an air ducting channel having an inlet and an outlet; said inlet disposed at said leading edge, said air ducting channel inlet having: an upper boundary defined by the lower surface of said arch; a lower boundary defined by the vessel hard top; and opposing side boundaries defined by said left and right side structural members; said outlet being angularly oriented to discharge air downward and rearward relative to the hardtop; said air ducting channel inlet receiving air passing over said hardtop due to movement of the vessel, and said air ducting channel outlet discharges said air below the hardtop in proximity to said cockpit area thereby mitigating backspray from entering said cockpit area; wherein the spoiler is adapted to redirect hardtop air flow into the cockpit area to mitigate and prevent deleterious reverse air and water vapor flow from occurring and entering the cockpit area; characterized in that the hardtop defines an opening, and an openable flap disposed in covering relation with said opening, said flap being configured to be mechanically actuated between a closed position wherein said flap is disposed in flush covering relation with said opening, and an open position wherein said flap diverts air from said air ducting channel through said opening.