Safety measures like lighting, walkways and handrails allow a multitude of visitors to enjoy safely the wonders of the grotto where the whole journey is accompanied by an experienced local guide.

[3] The main element of its formation is calcium carbonate, presenting also other minerals such as silica, gypsum, quartz and iron.

Its galleries and halls, true architectural oddities, are the result of the formidable job of water in the persistence of millennia.

[citation needed] Considered as the "cradle" of paleontology in the country, the grotto was discovered in 1825 by farmer Joaquim Maria Maquiné, then the landowner.

[3] Dr. Lund remained inside the cave nearly two years doing his research on the Brazilian paleontology, describing all the chambers, explaining the formation of stalagmites and stalactites and examining human remains and petrifaction of animals from the Quaternary period.