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