Isla San Telmo

Following overexploitation, the original settlers left, and only the black descendants of slaves inhabit the islands in the present day, engaged in subsistence farming and fishing.

A local fisherman told Delgado about the wreck that he had observed during the low tide, a rusted and weed covered metal body off the coast of St. Thelmo.

After five years, it was identified as the "Sub Marine Explorer", an underwater craft designed by Julius H. Kroehl, a German engineer who also reportedly died because of this vessel, that was one of the world's first submarines.

Richard Wills, an American Civil War submarine specialist, confirmed that details about the Sub Marine Explorer were published in a scientific article in 1902.

Investigations revealed that there were several technical problems in the vessel which had resulted in several tragedies and the submarine was an "iron coffin" in the Pacific Ocean bed.