During an underwater survey in October of 2008 two dives were undertaken on the wreck near the Ratac Promontory on the island of Koločep. The first, near Orašac, was on the site known as Drevine wreck, the other was in the bay of Suđurađ on the island of Šipan. The situation on both sites can be described as alarming. Most of the artifacts from both sites were raised several decades ago, but the non-documented wooden parts of the ship were left on the seabed without any particular protection. The survey confirmed our assumptions of their rapid decline.

The lower part of the hull of the Drevine wreck is clearly visible on the seabed, measuring 23 m in length and up to 4 m in width. It is probable that the average length of the preserved wood is even greater. The planks and massive frames could be observed under the accumulation of ballast stones, and lead sheathing was also visible. The samples of wood indicate a high level of degradation caused by the action of Teredo navalis. The core of the exposed wood has been completely eaten; only the outer shell remains, thus giving the false impression that the wood is still in good condition.

A similar situation is found in front of the bay of Suđurađ, where the form of a ship's bow could be observed on the shallower part of the site. The bow has often been mentioned in excavation reports and publications but was never excavated nor documented in detail. The preserved sections of the ship's hull measures more than 20 m in length. Part of the cargo and various objects of the ship's equipment are still present on the site.

On the Suđurađ wreck site, the serious degradation of wooden construction was also recorded. The ship's equipment, including its sheaves, appears to be the most seriously decomposed. These are extremely rare finds and therefore have exceptional value in the study of post-mediaeval nautical heritage. Considering the fact that the ship wrecked in the bay of Suđurađ, it is the only known ship that certainly belonged to the Republic of Dubrovnik. Therefore it holds an exceptional importance for the study of the history of Croatian seafaring and shipbuilding, a subject that is still in want of a more serious and systematic approach.

On the wreck near the Ratac Promontory it was not possible to detect the changes in the wreck site since the last survey was undocumented. Local divers informed us of frequent diving on the site, which draws people in due to its attractive location with six iron guns and a relatively large amount of cargo s exposed on the seabed. The main concentration of the cargo measures 21 m in length and 8 m in width, while groups of artifacts or isolated finds can be found up to 50 m distant from the site. Parts of the hull can be easily detected under the thin sandy layer. Comparing the composition of the seabed with the situation on other surveyed sites, we can presume the existence of the same problems regarding the action of Teredo navalis.