Pequena Rota Circular PRC 37 SMI - Rota da Água - Janela do Inferno

The trail offers a variety of scenery, transitioning from open fields to lush, jungle-like forests with diverse flora and old aqueducts.

The hand-carved tunnels are a highlight, offering a sense of adventure and a unique experience, especially with a flashlight.

The loop is generally considered an easy walk, suitable for families and those seeking a memorable nature experience without a strenuous hike.

The route is clearly marked, making it easy to follow even in foggy conditions, ensuring hikers stay on track.

The 'window to hell' waterfall at the end is a beautiful and peaceful moss-covered vertical wall with natural springs, a rewarding sight.