This trail starts about 6 miles from Casares. It takes a waymarked path through the gorge known as the Canuto de la Utrera, which divides the Sierra de la Utrera in two. After passing through an area where oil prospecting operations took place in the 1970s, the pathway becomes narrower and considerably more difficult to negotiate as it follows the course of a stream, and special care should be taken during rainy periods.
Beyond the gorge the trail leaves the Canuto route and turns left towards the north. It continues to the ancient Baños de la Hedionda whose sulphurous waters are still enjoyed today by anyone who wishes to do so. The trail comes back along the same route, with wonderful views in both directions.
The route offers the perfect opportunity to appreciate the natural beauty of the Sierra de la Utrera, an area of karst formations with a rich biological, geological, paleontological and archaeological heritage which impart a unique character to this landscape.