Sunken Treasures

In 2008, an expedition was launched by the Philippine National Museum and Historical Nautical Archaeology Foundation (HNAF), in search for the shipwrecks of galleons “Espiritu Santo” and “San Geronimo,” but the expedition was aborted sometime in October 2008 because of the controversial magnetite mining in Bagamanoc that time.

Fisherman paddling over troubled waters.A month ago, I tried searching for some clues about the sunken Spanish galleon “Espiritu Santo,” but my search led me to Augustinian missionary, Fray Diego de Herrera, who was one of the passengers on its last voyage.

Only now, I tried searching clues for the other galleon, San Geronimo. And this is what I found, I suppose its too speculative to state that HNAF and National Museum were looking for galleon Santo Tomas and not Espiritu Santo.
THE PHILIPPINE ISLANDS 1493-1898 By Emma Helen Blair, James Alexander Robertson, pp 39-40
Sixth Point
The losses of ships which have been employed in the Filipinas trade, and the cause thereof.
Through news brought by the ship "Santa Potenciana" in the year 601, it seems that the ships "San Geronimo," and "Santa Margarita," which sailed in the year 600, lost their masts in a storm; and the "Santa Margarita" drifted to the island of the Ladrones, and the "San Geronimo" to Luzon, near Catanduanes. Both were driven ashore in February, 1601, without being able to save themselves. This loss is attributed by some to disagreement among the officers, and by others to the late sailing of the ships, and to a lack of sailors, and (what is more nearly correct) to the general overloading of the vessels. The ship "Santo Tomas" was lost also on the voyage out, near the channel at Catanduanes; the hulk was lost with some supplies, small wares, and two milions or more of silver, besides the 500,000 pesos which were allowed to be carried.