I had a great experience in Cordoba, Argentina, and I would recommend it again! I stayed in Cordoba for ten weeks as a human rights intern.
The human rights internship is good for any age or professional level, as it is flexible. We participated regularly in three to four main activities, but we often went to other events and were asked to create our own research projects. My favorite regular thing we did was act as peer mentors for young women in a correctional facility, and my favorite event was marching on International Women's Day in favor of safe, legal abortions and to bring awareness to femicide.
Cordoba is a good city to live in for volunteers with tighter budgets like myself. The city is centered in the Sierra mountains, so there are LOTS of places with day-trip potential nearby, and the buses were inexpensive and reliable. My favorite trips involved hiking--Capilla del Monte and Las Cascadas. In Cordoba, there are art fairs, street performances, and events all the time, as well as some really good art museums.
I would definitely recommend that volunteers brush up on their Spanish! I went with very little, and I was not able to afford PA's Spanish lessons, so I relied mostly on immersion to learn. I learned quite a bit, anyone like me with little Spanish would be able to do it and have a great experience--however having a better grip on the language will give you a more dynamic experience overall. Having spent two and a half months in Argentina I am motivated to learn more Spanish, so that my next experience will be even better. I am planning on taking Spanish when I start school next fall.
I genuinely recommend this project for anyone looking into human rights work as a career, like me. It gives a good, in-depth look at work in the non-profit sector. Additionally, Argentina's past struggles with human rights in the 1970s and 80s gave me context for everything we were working on--it is a good country to learn in and from if you need an introduction to human rights advocacy.