The Caminho dos Escravos is a 13 km stone-paved trail built in the 18th century to connect Diamantina with the surrounding diamond districts. The original paving — large irregular stones fitted together by hand — survives over long stretches, and walking it gives an immediate physical sense of the labour involved in the colonial economy that created Diamantina's wealth.
The trail passes through cerrado vegetation — the dry scrubland of the central Brazilian plateau — with good views across the Serra do Espinhaço range. It makes a fine half-day walk from the town; guides are available locally and are worth taking for the historical context. The trailhead can be reached on foot from the historic centre.