The trail at Recanto Ecologico Rio Da Prata, an ecotourism site in Jardim, was flooded with crystal clear water from the Olho D’Água River.
Videos uploaded to YouTube showed drowned bridges, marked trails and vegetation.
According to Luiza Coelho, General Manager of the ecotoursim site, this is a very rare phenomenon that happens only when it rains more than 150 millimetres (6 inches) at once.
“Last time it was recorded was around five years ago, but it usually happens once every seven years,” she told Reuters.
The underwater world was only around for a couple of days before the water descended. “The trail was very damp, the wood infrastructures were muddy and moldy, but nothing was impaired or broken,” said Coelho.