Sete Lagoas is a workaday Minas Gerais city about an hour north of Belo Horizonte, but it has more to offer than the industrial outskirts suggest. Its name means "seven lagoons", and the central lakes still give the city its easiest rhythm: evening walks, bars around the water, and families gathering on the shore after the heat drops.
The strongest reason to come is Gruta Rei do Mato, a protected limestone cave just off BR-040, with tall calcite formations and prehistoric paintings in a nearby smaller cave. It is an easy half-day from Belo Horizonte, but Sete Lagoas works better if you also climb or drive up to Serra de Santa Helena, where a small chapel and open viewpoints look back over the city and the surrounding cerrado.
In the centre, Lagoa Paulino is the place to understand why locals like living here. It is not a grand sight, but it ties together the city: joggers, snack bars, weekend crowds, and the low skyline reflected in the water. Add the railway museum or the Nhô Quim Drummond cultural centre if you have time.
Sete Lagoas is not one of Minas Gerais' polished colonial towns. Come for a practical, rewarding day of cave, hill, lakefront, and simple mineiro food rather than for cobbled romance.