看到官网写的: https://help.cbp.gov/s/article/Article-751?language=en_US 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). During your visit to the United States, you may visit Canada or Mexico for up to 30 days and re-enter the United States, if you re-enter within the timeframe indicated on the Form I-94 that you received when you first entered. 我理解是说去加拿大30天内再回美没问题。但是加拿大的签证还是要办? 还是只要30天内,可以凭B2visa进出加拿大?近期有带父母去加拿大旅游的吗?谢谢
加拿大签证当然还是需要的啊。