The motor hums, the air tastes faintly of salt and pine resin, and Kotor’s stone ramparts slide away as the boat threads the narrow throat of the bay. Within minutes the mountains close in like dark cliffs on both sides and the water takes on that peculiar Adriatic clarity—green where the sun strikes, an almost electric blue where shadows pool. This half-day private tour is choreography: a 45-minute spin past hulking fortresses and cragged islets, a stop in a luminous sea cave for a quick swim and photos, a pause on a quiet pebble beach, then a soft-footed visit to an artificial island with a chapel that sailors built out of gratitude centuries ago.