2026 Harris Grand Mariner 250

The 2026 Harris Grand Mariner 250 is a 25-foot aluminum pontoon powered by a single 350 hp Mercury engine. Its redesigned profile features sweeping lines and a sloped silhouette, with soft-touch vinyl upholstery and comfortable seating throughout. The helm integrates an all-electric tower and C-Zone control system, giving you management of both the electrical systems and integrated lighting.

Onboard, the layout prioritizes open entertaining and relaxation space across the pontoon deck. The Mercury engine delivers strong power suitable for watersports and general cruising, with smooth handling characteristics across a range of water conditions.

This Grand Mariner comes equipped with high-end finishes and contemporary styling details. The all-electric tower system and digital helm controls represent the modern technology package integrated into the boat's design.