In a circular route with an "Average" degree of difficulty and approximately 3 km, the SET8 offers us a steep slope of 175 m, always by dirt roads. Starting at an intersection point with the ST7 route and ending in Alto de S. Luís, SET8 allows the visitor to go to the highest point of the Serra dde S. Luís, where the geodesic landmark is located. From the top, it is possible to glimpse beyond the Sado Estuary, the Tagus Estuary and the whole region that surrounds the Arrábida Natural Park.