Northstar Marine Insurance exploded onto the Ontario Boat Insurance scene 5 years ago, challenging other Boat Insurance providers to raise the bar with our dynamic and different approach to Boat Insurance.Northstar Marine Insurance exploded onto the Ontario Boat Insurance scene 5 years ago, challenging other Boat Insurance providers to raise the bar with our dynamic and different approach to Boat Insurance.Northstar Marine Insurance exploded onto the Ontario Boat Insurance scene 5 years ago, challenging other Boat Insurance providers to raise the bar with our dynamic and different approach to Boat Insurance.