Boat trips run regularly to Dubrovnik, I doubt you will miss the ticket sellers!
It is a lovely journey, about 40 minutes along the coast and arrives right at the edge of the old town in Dubrovnik.
Our return trip had a "technical problem" the engine conked out and we were rescued by a cruise ship shuttle boat, no problems a fine and calm day, wouldn't have missed it for the world!
The cheapest way into Cavtat, apart from walking, is bus #10. There are 2 an hour (Sept 2011) and a journey time of around 25 minutes, cost 17Kn.
In town it stops at the cable car station but starts it's journey at the local bus station.
If you are staying in Cavtat, you probably want to go to Dubrovnik. This is easy enough. Just catch the number 10 bus from the car park near the harbour, or further up the hill if you are staying up there. The bus takes about 45 minutes and the journey is spectacular (and sometimes hair raising). It runs about once an hour from 5am until midnight, and only costs a few euros.
A tip for the return journey: if you are coming back at peak hours in the summer (end of the day) you risk being left behind by a full bus, or being squashed standing up for up to an hour. The crowds all get on at the top of the steps from the old town of Dubrovnik. If you get on at an earlier stop, like the main station, you can avoid the crowds and get a seat on an empty bus.
Try and pick a sea side seat if you want to enjoy the breathtaking views as the bus hurtles along narrow roads high above the sea... or not if you are scared of heights or frail of heart.
Cavtat is far 30km from Montenegro, it is about 40 minutes driving (on the border you lose 10-15 minutes). If you wont to come to Cavtat and you are in Herceg Novi, Tivat, Kotor or Budva you can go by travel agency In Travel, they are making cheap transfers to Cavtat from Montenegro.
Some people take the boat to Dubrovnik for a leisurely day out, some say take the bus its quicker, personally i think a combination of the two is ideal. The tourist bus leaves cavtat at a very reasonable 9am and at 20kn is a bit more than the number 10 but with less stops its much, much quicker. The ride reaches points which are quite high-up in the mountains and if you're like me and don't enjoy the sheer drops its good for your heart to only do this one-way, although the roads are good- just me being a wuss. This then gets you to Dubrovnik before the crowds and is perfact if you want to do the walls without all the hustle and bustle or the placa - stradun main street which gets very busy as the day goes on. The tourist bus only leaves at 3pm, which means a boat back is a better option as they run quite regular for about 50kn (when the weathers good) so you can take a nice leisurely boat trip back after your hard days sight-seeing and the heat is a bit lower at this time of day too!
Cilipi is a modern airport just minutes from both Dubrovnik and Cavtat.Dubrovnik is 20 km way & Cavtat only 5 km If offers a variety of services for passengers such as: duty free shop; coffee shop; currency exchange; bank; tobacco & newspaper stand; luggage wrapping, etc.
From the airport, Atlas buses offer transfers into Dubrovnik main station at the Pile Gat for a reasonable 35 kuna or the equivalent of about 5 Euro. Transportation is available after most flight arrivals. Atlas buses are modern coaches and Atlas also runs excursions & tours. However, the deep yellow & white "Libertas" public buses which are presumably less expensive, are also available at the airport, but I have no price info.
There are boats that leave Cavtat several times a day for Dubrovnik. I think they charge 40 kuna ($7USD), and the ride takes about 45 minutes. Also, bus #10 makes a few runs between Cavtat and Dubrovnik.
To get to and from the airport by taxi, it will cost you a whopping 100 kuna ($17.75USD). This is still much cheaper than if you were staying in Dubrovnik. Taxis between the airport and Dubrovnik are around $50USD!
If traveling between Cavtat and Kotor, Montenegro, there are, I think, two buses daily. The bus coming from Kotor first must go north to Dubrovnik, which adds at least 30 minutes to the trip. There are no direct buses from Kotor to Cavtat. Because I was pressed for time, I took a bus from Kotor to Heceg Novi, and then from there I hired a taxi that brought me directly to Cavtat. The taxi driver charged me 30E, and the ride took around 30 minutes. He left me at the entrance of the old town of Cavtat, claiming that he couldn't take me further. I later read somewhere that taxis have to have a permit to drive through the old town. Fortunately, it is a very small town and doesn't take long to get to the other end!
Next time in Cavtat I am going to rent a car! There is a frequent bus connection to Dubrovnik, and some buses to other destinations. But a car will give me the opportunity to see the Konavle hinterland with it's small villages where old traditions are kept up, go to the fameous restaurant Konavoski Dvori at a mill in the river Ljuta, see the folklore performances in Cilipi, see remnants from prechristian hellenic and roman times, ..., ... I could even take a trip to the neighbouring countries Bosnia & Hercegovina and Montengero, which are only a few miles away.
Several of the establishments along the quay offer cars for rent. You don't see any cars anywhere, you reserve one by them and they bring it to you. They claim to be cheaper than the larger companies, who have offices in Hotel Croatia. The picture shows the price list of one of them as of april 2006.
Ferries are a great way to get around the Dubrovnik area, to and from the Islands etc. However I would advise that you check exactly what you're going to get because some ferries aren't what they appear to be. Last summer whilst in Cavtat, my girlfriend and I booked a ferry to the island of Lopud where there is a beautiful (and rare for Croatia) sandy beach. When we set off, it rapidly became clear that the ferry to Lopud was actually a ferry but the same boat they used for the three islands fish picnic, you just paid less. As a result we were dropped off en route for a pointless 1 hour visit to another island, slowly made our way to Lopud watching a boat load of people eat fish, and nearly 4 hours later were dropped off there to be told that the boat would be returning in just under 2 hours. This gave us enough time to walk to the beach, have a swim and walk back. Just for good measure on the way back they boat owners decided to pull into Dubrovnik to pick up another of their boats and tow it back to Cavtat which was pretty hair-raising as our boat began to pitch and toss wildly as it strained to pull the other one. So before you book any "ferry" CHECK WHAT YOU ARE GETTING!
We caught the local bus #10 from the Gruz terminus at 11:30am, they run every hour and the trip to Cavtat cost Kn 12 per person. You can also catch the bus from outside the Tommy department store in the Lapad district. As the bus went further through Dubrovnick the old wooden seats were filled and standing room only for additional passengers. The bus must have been 30 years old and the young driver drove it like he was in a Formula I race, racing around corners on the hillside as we caught magnificent views of Dubrovnik hundreds of metres below. It was a most interesting trip, many stops, peasant people getting on and off and some beautiful scenery. The trip took 30 minutes and the experience was a joy, far better than a taxi drive.
Local buses leave from Dubrovnik main bus terminal, and most of them stop by the Pile gate of Old Town Dubrovnik. But not no 10 to Cavtat! To get to the nearest bus stop, I was adviced to walk the road along the outside of the city wall and follow it when it turned left and then right onto the main road. I was told there was no shortcut. But there is, I found it! :-) There is a small gate in the wall on the north side of Old Town, take one of the narrow streets upwards from the middle of Stradun (pic 4), go through the gate, cross the street and walk diagonally over to the Pizzeria Tabasco (pic 3) (good place to eat, too, not only pizza, and a lot cheaper than the overprised place by the Pile gate), up the stairs to the left of it and once at the top you see the bus stop on your right hand. The buses do have a schedule (pic 2), kind of every half hour during peak hours. But I waited 45 minutes, and there were quite a few people waiting when I arrived :-( And when the bus finally came, it was overcrowded. My advice: Do not take the bus during peak hours!
Price (april 2006) is 12 Kuna if you pay by the driver, 10 if you buy a ticket ahead at one of the info kiosks.
Cavtat is a half hour bus ride from Dubrovnik. Just take bus #10 from the main bus station. There are several buses daily. One warning - if it is raining, you will be in for a long and scary ride up in the narrow mountain roads.
The ship made a prefect mooring maneuver, turning like a Marry-go-round.
Crew trained to perfection, no shouting, no rushing, like a ballet. They knew we were all breathless with astonishment.
They stayed in the port for two hours. If a ship stays longer than two hours, they have to pay mooring fee. Chartering this ship for one week costs as much as buying a family size yacht. I guess they have to be careful with extra costs. I would give them some money just for the grand performance, really.
It is extremely easy getting to this town from Dubrovnik. Daily buses leave Dubrovnik's main bus station (Bus # 10) continuously throughout the day and night. Just pay on the bus...it cost us 12 KN one way (Sep '03) and takes about half hour with all the stops.
There are boat trips from Dubrovnik that also leave throughout the day but take longer...they range in prices...when we were there (Aug-Sep), it was about 60 KN if I remember correctly.
Boat's are easilyu found at the yahting harbour and can take you to the small island close by or even Dubrovnik. Around trip 80 cunas to Dubrovnik.