dark and rough texture with moss wall tunnel opening the outside light algar carv terceira azores portugal

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Dark and rough texture with moss wall in tunnel opening to the outside light in Algar do Carvão, Terceira - Azores PORTUGAL
   
   
   
   
   
   
   
Light entering the lava tunnel where an active volcano was. It is now a natural monument, a famous and tourist spot in Algar do Carvão on Terceira Island - Azores PORTUGAL

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