If you're interested, Victoria is the retirement capital. As I understand it, if you are not intending to be an immigrant, then a regular visitor's visa will do. You have to ask upon entry each time about the stay allowed but there are no retirement visas. It has to do with health care. On the other hand, if you apply and are admitted as an immigrant, you are entitled to medical care with no charge but you would have to file income taxes. Check with the Canadian embassy in Tokyo or consulate elsewhere in Japan when you get home. You can then use your Aeroplan points.