In this event we will set off in search of an old aqueduct full of history, lost in the heart of the Sintra mountains. The walk begins at the Rio da Mula Dam, climbing along tracks and roads to the vicinity of the Alvante Rock. It then continues along unfrequented trails to the ruins of the Tapada do Saldanha house and from there to the Tapada da Fonte Velha and its aqueduct, a building that appears to us, completely unexpectedly, in the middle of a trail almost closed off by acacia trees, a setting that almost reminds you of that of an adventure film. The return to the starting point of this walk is via a long, almost continuous descent, punctuated by one or two more challenging points along the way. Another event not to be missed!

Rio da Mula Dam

This dam was designed in 1963 by engineer Ressano Garcia and built by Cascais Municipal Council in 1969 to supply water to the municipality. It has a support wall 18 metres high and 192 metres wide, a flooded area of 45,000 m2 and a capacity to store 23,000,000 m3 of water.

The Rio da Mula has its source near Casal dos Porqueiros and Matos Piedade, close to Tapada do Saldanha. It is 27 kilometres long and near Cascais it takes on the name of Ribeira das Vinhas, and then flows into Praia da Ribeira.

- Rio da Mula Dam - Tapada do Saldanha - Penedo do Alvante - Tapada da Fonte Velha - Fonte Velha Aqueduct - Natural landscapes -