The Circuito Ecológico de Corrida de Montanha in Bom Jardim, Rio de Janeiro, invites hikers and trail runners into a rugged yet accessible mountain environment where nature’s raw pulse is unmistakable. This 12-kilometer loop trail challenges with an elevation gain of roughly 600 meters, rewarding every upward stride with expansive views over lush Atlantic Forest valleys and the distant contours of Serra dos Órgãos.

Starting just outside Bom Jardim city limits, the trail winds through dense, green forestry where ancient trees lean forward, as if leaning in to watch your passage. The terrain shifts between packed dirt, scattered rocks, and occasional root lattices gripping steep slopes, demanding steady footing and alertness. Rarely forgiving, the trail hides sudden climbs that push the legs and lungs, but opens up to broad clearings where sunlight spills in waves, warming hikers and spotlighting patches of bromeliads and orchids.

Rivers along the route dare you to pause — their clear, cool currents tug at the senses, providing refreshing hydration stops and moments for reflection. The soundtrack here is the brisk wind through the canopy and the distant calls of toucans and hawks, a constant reminder that this mountaintop circuit is fiercely alive and distinctly itself.

Timely hydration is key; pack enough to avoid relying solely on natural water sources which might fluctuate with season. Good trail shoes with solid grip will anchor each step through steep climbs and slippery sections, especially after rainfall. Morning runs or hikes grant cooler temperatures and more stable footing but expect occasional midday sun bursts in the open sections.

While the trail isn’t technically extreme, it rewards respect and preparation. Pace yourself, watch for shifting weather, and take comfort in knowing each uphill stretch ends in a viewpoint or a cooling descent through the forest. This is mountain running and hiking with a practical edge — an invitation to be both physically engaged and in tune with an ecosystem that listens back.