Welcome to San Antonio! Whether you are a visitor to San Antonio or a lifelong resident, there is so much to do in this great town! Do you have an event in San Antonio? Post it on the San Antonio Annual Event Post for FREE! Are you hosting, participating in, or just know about an upcoming San Antonio event? The San Antonio Calendar of Events section on Annual Event Post showcases concerts, theatrical performances, things to do, art shows, craft fairs, parades, holiday happenings, and other fun San Antonio events. To post an event in your community, please login/signup. Your event will be posted immediately to the following San Antonio calendar of events!