2026 Harris Grand Mariner 250

The 2026 Harris Grand Mariner 250 is a 28-foot pontoon with an 8.5-foot beam, built on a fiberglass hull. It comes powered by a Mercury 350L Verado DTS engine and rides on triple tubes for stability and buoyancy across varied water conditions.

The boat is equipped with an Ion Power Tower fitted with a Bimini top, providing shade and support for water sports. Seating includes ultra-luxury dual helm chairs and a woodgrain luxury table, paired with luxe dune-upholstered furniture throughout the open deck layout. A ski tow bar is installed for towing activities.

Technology and convenience features include a Technology Package, Total Light Zone Package for ambient and task lighting, and a Convenience Package. The boat comes with a bear trailer for transport and storage.