Our Lady of the Rocks is a cool little man-made island off the coast of Perast. It is home to a Catholic church with a museum, paintings by Tripo Kokolja, and a famous votive tapestry embroidered with golden and silver fibers (and even the artist's own hair!).
It is one of the most popular tourist attractions in the area and you can visit it either on a boat tour around Kotor Bay or by hopping on a small boat directly in Perast.
For the tour, you can safely book from 'Montenegro Submarine' company that has earned a badge of excellence long time ago (dropping their tour below)