Phosphate mines

In the 19th century another natural product, besides gold, was found to be fit for exploitation. On Seroe Colorado, at the utmost south-easterly tip of the island, guano was found. This limestone, containing phosphoric acid, originates from bird droppings, in this case sea gulls. There was a broad world market for phosphate that was used as a fertilizer.

Today you can still visit the, very hot, mines. Take a tour with Aruba Explorers for an amazing experience of these mines and caves. You will have to subscribe to go so contact them.