A student visa is a special endorsement added to a government passport issued to students enrolled at qualified educational institutions. Student visas are visas that do not require the holder to obtain citizenship. Any prospective student seeking higher education in another country must obtain a student visa from that country.
A tourist / Visitor visa also called as a temporary resident visa is an official document that shows that you meet the requirements needed to enter Canada. Most travellers need a visitor visa to travel to Canada. Most visitors can stay for up to 6 months in Canada.At the port of entry, the border services officer may allow you to stay for less or more than 6 months. If so, they’ll put the date you need to leave by in your passport. They might also give you a document, called a visitor record, which will show the date you need to leave by.If you don’t get a stamp in your passport, you can stay for 6 months from the day you entered Canada or until your passport expires, whichever comes first. If you need a stamp, you can ask a border services officer for one.
Tourist visas can be of any type depending on the purpose of visit and the country you want to visit.
For Example, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for a temporary stay, or an immigrant visa for permanent residence. Visitor visas are nonimmigrant visas for persons who want to enter the United States temporarily for business (visa category B-1), for tourism (visa category B-2), or for a combination of both purposes (B-1/B-2).