Exploring the best caves in Portugal

Caves systems that spread over a distance of 17km! –  Join Armando Ribeiro and Rui Luis on a journey of discovery beyond a 1000m underground and more than 140m deep, where they discover a much more to explore.

Portugal has three main karst areas, the Serra d´Aire-Candeeiros, the Sicó-Alvaiázere and the Arrábida mountain ridge. Serra d´Aire-Cadeeiros and Sicó-Alvaiázere are inland and have some permanent karstic springs. Arrábida is a limestone mountain which leads down to the sea, the sources of fresh water that flow into the mountain are not known at the time.

During this presentation Armando Ribeiro and Rui Luis will show videos and photos showing the fantastic beauty and complexity of these systems,  along with details of the current stage of exploration.

In Serra d´Aire-Candeeiros there are two main springs named Alvielaand Almonda, they are both embedded in the Jurassic limestones.

Recently, whilst exploring the Alviela spring, which has been found to be the biggest spring in Portugal, Armando’s and Rui’s discovered a continuation of the cave, beyond the  previous 1000m in and more than 140 meters deep.

The second spring,Almonda Springcomes out of the subterranean hydrologic network, which is part of the most extensive karst system in Portugal. Almonda’s cave has an approximate spread of over 17km, with an extensive system of underground galleries, full of fossils, due to its complexity and dimension, its exploration and recording are still ongoing.

The third spring, the Anços Springrises from the interior of the Sicó massif in a marginal area of the northern sector of the western Meso-cenozoic border. It was previously explored by a French team in 1983 that ended in a restriction at a depth of 63 meters. This team believes that this cave system still has lots more to reveal.

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