Two small rocky islets just offshore from Petrovac, visible from Buljarica beach. Sveta Nedelja carries a tiny stone church, built (so the story goes) by a Greek sailor who washed up on the rock alive after a shipwreck and vowed a chapel in thanks. Katič is bare except for the foundations of a Roman-era lighthouse.
In summer, small boats run from Petrovac harbour for swims and short visits to the chapel. The water around the rocks is excellent for snorkelling — clear, with rocky drop-offs and small grottoes.