The Super Visa Program allows parents and grandparents to come to Canada as long-term visitors. Thus successful applicants will not be required to renew their visitor visa every six months, as they will be granted a multi-entry visitor visa valid for two years at a time with expiry date up to 10 years.
You can apply online or on paper to get a parent and grandparent super visa. There are also specific requirements that you must meet to be able to apply.