2026 Harris Grand Mariner 250

The 2026 Harris Grand Mariner 250 is a 25-foot tritoon built on an aluminum hull and powered by a single 350 hp Mercury Verado outboard. New from the factory, the boat features a three-tube pontoon chassis designed for stability and handling across cruising, entertaining, and watersports applications.

The deck layout accommodates up to 14 passengers across spacious lounge areas, with a raised helm section providing captain and co-captain seating positioned for visibility and comfort. Plush pillow-top seating throughout uses premium soft-touch upholstery. The boat includes integrated in-floor ski and gear storage, premium boarding ladder access, and LED lighting across the exterior and helm areas.

The helm integrates a C-Zone digital system with available dual Simrad touchscreen displays for engine and onboard control. Electronics options include a JL Audio sound system. An all-electric ION Power Tower with integrated bimini is available. Steering is precision-engineered with an advanced hull design supporting confident maneuverability across a range of water conditions.