According to Canada's Vancouver Sun:
"Havana is not a common tourist destination for Canadians. Though some 700,000 Canadians travel to Cuba each year, most go to the popular resort areas of Varadero, Cayo Coco and Holguin, with maybe a day trip to Havana."
As a reminder, those resorts are in isolated areas, owned and operated by the Castro regime's military and where access by the Cuban people is prohibited (or at best, strictly controlled).
Answer: Hardly.
Do tourists help the Castro regime's military (aka, repressive forces)?
Answer: Lucratively.

