Island Light Week is one kilometre from Petrovskogo city beach. This island is stone, it is quite small in size. It is located so that Petrovskogo Bank closes it another stone island Katic, covered with pine trees. You can get here by swimming, paddle boat or rented boat.

On the island of Sveta Nedelya is a temple with the same name as the island itself. Like many other places Montenegro, with this island and Church related an amazing legend. She tells that once on this island during the storm miraculously saved the sailors. This was an amazing event on the last day of the week – Sunday, and Serbian the word will sound just as "week", the Church was consecrated in honor of the Holy Resurrection. After this event, the mariners have built literally on the bare stones of the Church, which until today is considered a talisman for local sailors and fishermen.

In addition, the Church name is a reference to a local Saint, the Martyr of the Week, whose icon adorns the iconostasis of the Church of St. Elijah is located in the town of Petrovac.