This is a wonderful short trip to take when in Perast. You can get a boat to the islands (5 euros return) with Our Lady of the Rock being the most popular of the two. This man-made island is a real little gem with a wonderful church and attached little museum (entrance to the church is free but there is a 2 euro entrance fee for the museum). There was a very informative guide on hand who explained the amazing history of the island and the various icons and objects that decorate the interior of the church or which can be found in the museum. For such a small little island it really has a lot to keep you very interested and engrossed. Well worth a visit.