It isn't exactly Ireland. In fact it's not even close. But the people who sat in the warm sunshine along the River Walk were quite happy to celebrate St. Patrick's Day San Antonio style.
Hundreds cheered as barges dyed a section of the river green to honor St. Patrick.
For a day, San Antonio's famous River Walk is called the River Shannon.
"It's kind of a double blessing because all these people that are here for spring break are like, 'Wow this is awesome,'" said Nancy Hunt, Executive Director of Paseo del Rio. "We didn't know we were gonna get this, free entertainment. It's all free, it's great, it's great fun."
The dying of the river is an annual St. Patrick's Day tradition. The city used 110 pounds of environmentally friendly green coloring Sunday to turn the river into an emerald isle for the River Parade.
"It's really neat," said visitor Sarah Snyder. "I have always heard they throw a good party here, but this is my first one, so I am really excited to be here."
After a river parade St. Pat's partyers can eat and drink at La Villita just above the river.