The number of Canadians returning from trips to the U.S. by air fell by about 22 per cent in June compared to a year ago, according to Statistics Canada. Canadian return trips from the U.S. by car dropped by about a third. And domestic tourism spending is up, which means a boost for the Canadian tourism industry.  Guest host Catherine Cullen speaks with Captain Walter Flower about the boom in his whale watching tours off the coast of Lunenburg, Nova Scotia.