SAN ANTONIO – Celebrations for St. Patrick’s Day in the Alamo City may not be in full swing due to the pandemic, but some traditions are still being celebrated. This year, we’re just magically turning the river green.”The dye used is non-toxic and approved by the San Antonio River Authority. The St. Patrick’s Day parade and festival had to be cancelled for the second year in a row. Buchanan has seen his share of St. Patrick’s Day parades as The Original was opened in 1987. Each day until St. Patrick’s Day, the Riverwalk Association will use about five gallons of emerald green dye to keep the water green for visitors to enjoy.