From Alathra Wiki

The Vrbas region is on the eastern coast of Moria. It is surrounded by water an all sides, causing it to be regarded by some as an island. It is bordered to the north by the Ada River, to the south by the Serpent River, to the west by Lake Oganj, and to the east by the ocean. A small strip of land once connected Vrbas to Rathkin. On 30 July, 2021, a canal was constructed linking Lake Oganj and the Serpent River, thus creating the "island" of Vrbas.

Beograd na Moru lies on the border between Vrbas and Beograd Hold. Other than a cobblestone road heading north-south, there is little else on the island.