Grutas de Alvados & Grutas de Santo António

Estremadura & Ribatejo

Discovered in 1964, these caves are the spiky smaller cousins of Mira de Aire, with similarly disco-flavoured lighting. These caves are about 15km southeast of Porto de Mós, and 2km and 3.5km, respectively, south of the N243 from Porto de Mós to Mira de Aire.

Outside high season, you must go to Grutas de Santo António first to arrange a visit to Grutas de Alvados.

Lonely Planet's must-see attractions

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