Sorry, you won’t be the first.
Last week, the first pair of foreigners took advantage of Argentina’s same-sex marriage law. According to Notio.com.ar, a Colombian couple named José and Oswaldo made use of new rules that “permit tourists to access this option.”
And you’ll need to pick your location carefully, it sounds like–not all localities have opened their city halls to vacationers. Santa Fe, Tierra del Fuego, and Buenos Aires province were the first, followed by Rosario and La Plata.