Spanish classes on weekends in Poblado? (Medellin)

Hi all, I just arrived in Medellin and will live here for a while. I am looking for Spanish classes on weekends. I have read some of the past suggestions in the forum, but I was wandering if any of you had any good suggestion/experience with weekend spanish classes - group or private - they could recommend (most schools seems to be closed on weekends).

Thank you, looking forward to meeting many of you soon!

Antonio