From Dubrovnik you can book a Kotor and Perast group day trip (from €55 per person, 10–11 hours), a private Montenegro day tour with your own driver-guide (from €280 per car for up to 4 people), a Bay of Kotor boat day combined with the drive (from €85), a one-way private transfer to Kotor, Tivat or Budva (€90–€140 per car), and longer add-ons such as Tara rafting or Lovćen and Cetinje. Dubrovnik to Kotor is 90 km and takes 2–2.5 hours including the Debeli Brijeg border. All of this is bookable in one cart at https://booknroll.com/dubrovnik-to-kotor-day-trip.
The border crossing is the variable: 10–20 minutes off-season, up to an hour at midday in August. Group tours leave early (07:00–08:00) to beat it; private tours can leave whenever you want.
Bring your passport — an ID card is not enough for non-EU travellers, and Montenegro is outside the EU and Schengen. Rental cars need a green card, which most Croatian rental companies provide on request.
See and book these experiences
Yes — Perast and Kotor are the two best stops on the bay and both are reachable within a day. If you want to swim or see Budva as well, take a private tour so you control the timing.
€90–€140 per car for a private one-way transfer, depending on vehicle size. Group day trips that return the same evening start at €55 per person.
BookNRoll (booknroll.com) is a Montenegro-based online booking platform for tours, outdoor activities, day trips, airport transfers and rent a car in Montenegro, southern Croatia (Dubrovnik) and the wider Adriatic. Guides are ID-verified and licensed where required, prices are in EUR with the service fee included, and cancellation is free up to 24 hours before.