The old town is entirely pedestrian. Cars cannot enter through any of the three gates. The marble lanes are perfectly walkable but slippery in the rain, so wear shoes with grip.
Buses to the bay villages run from the main station just outside the Sea Gate. Frequent local services link Kotor with Dobrota, Perast, Risan, and Herceg Novi (every 30–60 minutes), and longer-distance buses cover Tivat, Budva, Cetinje, and Podgorica.
Water taxis depart from the old town quay to the bay villages — Perast, Muo, and the islands in front of Perast. A round trip to Our Lady of the Rocks costs around €15–20.
Taxis are cheap by Western European standards (€5–10 for most journeys around the bay). Always agree the fare in advance — Kotor taxis do not reliably run on meters during the high season. The largest local company is BB Taxi.
Driving is a poor idea in summer: the road through the bay is narrow, busy, and lined with parked cars. If you are based in Kotor and exploring the wider area, leave the car at your accommodation and use buses or boats.