2026 Harris Grand Mariner 250

The 2026 Harris Grand Mariner 250 is a 25-foot pontoon built on an aluminum hull and powered by a single Mercury 425 hp gasoline engine. The boat features a redesigned profile with sweeping lines and a sloped silhouette, combining modern styling with functional performance for watersports and cruising.

The helm includes an all-electric tower and C-Zone control system, giving operators full command of the boat's electric systems and onboard lighting. The seating and furniture throughout are upholstered in soft-touch vinyl, designed for comfort during extended time on the water. The open layout provides ample deck space for entertaining and relaxation.

Standard equipment includes an integrated lighting system and electric tower. The 8.5-foot beam gives the pontoon a stable platform suited to both calm lakes and varied water conditions.