A vast and beautiful complex of caverns open to public featuring majestics halls, various underground lakes and countless narrow tunnels.
Wikipedia http://pt.wikipedia.org/wiki/Grutas_de_Alvados
Official website http://www.grutasalvados.com/
Email geral@grutasalvados.com
Phone +351 249 841 876
Address (Unnamed Road), 2480, Portugal
Coordinates 39°32'22.31" N -8°45'7.547" E