Narrowboat Sale We don't currently have a Narrowboat sale on. However below is a list of narrowboats for sale at Whilton Marina that have been reduced in price. Boats (2) Filter By Sort By Boat Name Keyword Exclude Under Offer Boat Style Traditional Semi Trad Cruiser Widebeam Boat Length From (ft) To (ft) Price Range From £ To £ Layout Option Normal Reverse Price High to low Low to High Length Longest first Shortest first Listed Date Newest first Oldest first Year Built Newest first Oldest first Click here to view a PDF Brochure for this list King Louie Key 112 Under Offer RecentSurvey £52,950£55,950Reduced 1997, 70ft Traditional Style Narrowboat. Hogarth Key 30 £34,950£47,950Reduced 2016, 28ft Widebeam Style Boat.