Hotels near St. Mary Square are always on sale with CheapOair! Those who are visiting downtown, then you should not miss visiting the ST. Mary's Square. This is one of the most popular parks in the area. With plenty of trees, bushes, benches to sit & relax, it is owned by the San Francisco Recreation and Park Department. It is very popular among kids and teenagers as it has plenty of playing area. Find great deals on cheap hotels near St. Mary Square, and count on CheapOair for all of your travel booking needs.