" a cross-canada tour "

that's "A" tour, which means 1, a singular event, which is why something like that is so impressive. it's misleading to call a series of trips " a tour".

if you went to europe 5 years ago, went around turkey and egypt 3 years ago, hit india last year, are going to southeast asia this year, and plan on going to chile and argentina next year, would that qualify as "an around-the-world tour"?