Hi

My wife and I are going to Orlando in September next yearand have the opportunity to go to Toronto during the trip for a sporting event.
My question is when we go to orlando from UK we fill in agreen form and it is processed by immigration on arrival and they know when weleave.
When we go to Toronto will it be classed as leaving theUSA and then re-entering as a new entrant even though we have a return ticketand we are traveling out on the morning and returning the same day. Will we will have to fill in another greenform when we return.

I understand we will have to get an eTA visa to enterCanada.

Hope this makes sense

Thanks
Graham