The island of Silba is a small island within the eastern Adriatic island group. It is situated within the north Dalmatian subgroup of islands, belonging to the Zadar division. Due to its setting Silba has been a part of the prehistoric and antique seafaring routes, which is evident through the accumulated archaeological findings. Moreover, the island has a long history of settlement. Traces of the Liburni have been discovered with the prehistoric period in question, while the Romans have left their mark in the Age of Antiquity. One can talk about the advent of the Croatian people on the island around the 8th or 10th century. The 10th century is also worthy of note as it yielded the first written mention of the island. The Byzantine emperor Constantine VII Porphyrogennetos mentions Silba in the form of Σελβώ/Selbo within the 29th chapter of his pivotal body of work, De Administrando Imperio. With regard to the Roman presence on the island, it has been established in the bay of Pocukmarak. The toponym Pocukmarak derives from the Latin phrase Sanctus Marcus. That is important to note as toponyms of the san(c)tu(s) + a saint's name built are linked with Late Antiquity churches of the 5th and 6th century. At the same time, the oldest church on the island, the church of Saint Mark, lies in proximity of the bay. It can be dated back to the 5th or 6th century itself. The site can also be placed inside the aforementioned time frame due to the findings sporadically discovered throughout the 20th century. Zdenko Brusić and Smiljan Gluščević laid out the possibility of an economic complex and accompanying cemetery existing at the location at the time. In addition, Z. Brusić observed architectural remains incorporated within a small pier submerged not too far away from the shore. The remains turned out to be various sarcophagi parts used as spolia. Although their exact chronological relation is not fully clear, it is assumed the sarcophagi were used as spolia simultaneously with the construction of the pier. Some uncovered wooden parts helped to roughly date the site in the 5th -6 th century. The Pocukmarak bay is not the only site where methodical research has been carried out. S. Gluščević conducted such aforementioned research on the location of Grebeni. They are a group of three small islands known as the Western, Middle and Southern Greben. Along the coast of the Southern Greben a shipwreck from the Roman period was found. It was dated to a time frame between the year 40 AD and 50 AD. As a result of the conducted research, a merchant ship with Dressel 2-4 type of amphorae and unevenly cut stone as the ship's main cargo was reconstructed. Among the rest of the cargo, particular pottery items suggested an Eastern Mediterranean origin of the ship. In proximity of the Western Greben three shallows were located. The finds in the shallows suggested more antique shipwrecks. Alongside the aforesaid shipwrecks, findings of amphorae and anchors were found along the coast of the Western and Southern Greben. Scattered findings were also found in the Sveti Ante Cove and around the Arat Cape and Samotvorac Cape.