Amber Rose, Blac Chyna -- Ass Parade Lands North of The Border (PHOTO)

Amber Rose and Blac Chyna are officially on tour ... switching it up from Trinidad to the colder climate of Toronto.

The two arrived in the 6 on Friday -- presumably for the NBA All Star festivities -- and this time, they're wearing a lot more clothing than what we saw earlier this week.

A tame look for the airport ... but rules can change when they hit the town.