Post Office
In San Carlos, there is a Post Office in the small strip mall beside Hambone’s insurance. It is open Monday to Friday from 9:00 am – 2:00 pm. It is closed on national holidays and on Postman’s Day, November 12. It does not sell US or Canadian stamps. You must use Mexican stamps to mail a letter from Mexico. It may take up to 4 weeks to get a mailed letter to the US from San Carlos.
DHL
The most reliable and fastest way to send or receive packages is by DHL, a worldwide delivery service. The DHL office is in Guaymas. If you are sending a package or envelope, do not seal it until the DHL representative has checked its contents.
