The Travessia Teresópolis–Petrópolis is one of Brazil's great classic multi-day hikes, a 35-kilometre ridge traverse through the heart of the Parque Nacional da Serra dos Órgãos. The trail connects the two park entrances — from Teresópolis in the north to Petrópolis in the south — crossing dramatic exposed ridgelines, granite domes, and dense Atlantic Forest over two to three days. It is the most popular long trek in southeastern Brazil and deservedly so.
The route starts from the Teresópolis entrance and immediately climbs steeply through Atlantic Forest before breaking onto open rocky terrain at the top of the ridge. From there, the trail alternates between forest, high open ground, and scrambling sections that require some route-finding skill. The views in clear weather are outstanding — long perspectives across forested valleys toward the coast on one side and the Serra do Mar inland ranges on the other. Camping is in designated areas with basic facilities. The park charges an entrance fee and limits daily visitor numbers during busy periods, so booking in advance is advisable during Brazilian school holidays. Hiring a guide is recommended but not required.