Juan Pablo Duffard Regional Historical Museum is 2.6 mi (4.2 km) from central Formosa, why not stop by during your stay. If you want to experience more of the culture Formosa has to offer, head to Laguna Oca and Plaza San Martín.
After visiting Church of Our Lady of Carmen Cathedral, make a plan to see the other sights and activities in Formosa. Wander the forest and gardens while you're in the area.