1. A path or route through natural terrain, typically in forests, mountains, or countryside, often used for hiking or walking
We hiked along a natural trail through the Amazon rainforest.
Caminhamos por uma trilha natural através da floresta amazônica.
2. An unpaved pathway that has been naturally formed by repeated foot traffic or animal movement through vegetation
The deer had created a natural trail through the forest over many years.
Os veados criaram uma trilha natural pela floresta ao longo de muitos anos.