If you are traveling to San Marino with Canadian passport in most cases you do not need to obtain entry visa to San Marino at the consulate beforehand. The period of stay though may be limited by the laws of San Marino. You may check what is the allowed period of stay at the San Marino consulate in Canada. All other applicants should check information on San Marino visa requirements, procedure, application forms, fees and processing timings may be found here: http://san-marino.visacenter.ca.