re entry to Canada on mutiple visa

[REKHS]

Hi, I am 2 months pregnant and wants to invite my parents to Canada now. As i know there can live in Canada at a stretch for  6 months. By that time i will be 8 months pregnant and i need them more. My question is: If they have a multiple entry visa, can they go to US for a few days after their 6months is over and re enter again to Canada to join back with us for another 6 months.
Thanks in advance

[astasi]

Hi,

Yes if their visa is multiple entry & valid beyond 6 months.

[wolanila]

I thought that you can also apply for a 6 month extention on the visitor visa from canada 1 month before the visa expires.  that would be a total of a year visiting visa.

[REKHS]

Thanks for the replies guys. Highly appreciate