Well if you want to make money you could always smuggle cigarettes' into Canada. Google how much a carton of cigarettes cost in Washington state, for example, then google how much a carton of cigarettes cost in British Columbia, you'll be shocked.
With rum runners back in the day, it was estimated that something like 70 % of all booze in the states was from the West Coast smuggling. In fact, I was just reading a history of Texada Island last night (hence my smuggling theme today) and the vast bulk of whisky consumed during prohibition was from this Island that I can see from my bedroom window.
The International boundary on the water back in the day for the States was either 3 or 10 miles, something like that. So larger ships would purchase booze legally in Vancouver and Victoria, then stay a mile or two off the American coastal boundary and supply smaller boats that would come out from the coast to pick up the booze. These guys took great pride in the fact there were so few deaths compared to land based booze smuggling. On the west coast it was something low like three deaths.
Sucia Island in Washington State was a popular location for American boats to stage waiting for booze from Vancouver, Victoria and Texada Island. Here's a bit from Wiki:
"The isolated coves and bays of Sucia Island once served the Lummi Indians in their seal hunting days.[2] They later provided excellent hideouts in the 19th century for smugglers of illegal Chinese laborers, as well as for hiding illegally imported wool and opium[citation needed]. Still later, the islands played a large role in rum-running during liquor Prohibition of the 1920s and 1930s, and in recent years they have figured in drug trafficking.