REVIEW · CROATIA
Full-Day Boat Trip, Cave Swim, lunch & Drinks – Medulin/Ceja
The most unusual part of this Medulin boat trip is the underwater cave swim at Cape Kamenjak. You enter the cave with a crew member nearby, then return to the boat for grilled lunch, wine, beer, soft drinks, and a long swim stop on Ceja Island.
I like the generous drink service and the choice of tuna steak, fish, meat, or a vegetarian plate. I also like the easy mix of sightseeing and free time. The main drawback is simple: two to three hours on Ceja may feel long if you are not keen on sunbathing.
Key points to know before booking

- The cave swim is the trip’s main thrill: You visit Cape Kamenjak’s southern cliffs and enter an underwater cave with crew support.
- Lunch is cooked aboard Sandra: Choose tuna steak, fish, meat, or a vegetarian dish with cabbage salad and ciabatta bread.
- Drinks are included throughout the boat ride: Wine, beer, cola, Fanta, and water are available, along with a welcome schnapps.
- Ceja Island gives you a long swimming break: Plan on about two hours, with a restaurant and café bar available on the island.
- The meeting point takes some attention: Find the red-and-yellow Sandra at harbor spaces 32 or 33, under the red umbrella.
- Bring cash for Ceja: The island is cash only, and hotel pickup is not included.
The cave swim is the heart of the trip

If you want a boat outing with more to do than sit on deck, this is the right sort of day. The boat leaves Medulin and heads toward Cape Kamenjak, the southernmost point of Istria. The views open across Medulin Bay, its scattered islands, and the Premantura peninsula.
The key stop is a swim into one of Cape Kamenjak’s underwater caves. A crew member accompanies you, which makes the activity feel more controlled than simply being dropped near the rocks and told to explore. You still need to be comfortable in the water, and you should bring swimwear, a towel, sunscreen, and snorkeling gear if you have it.
The cave is not just a photo stop from the deck. You actually get into the water and go inside, so this part gives the five-hour cruise its sense of adventure. The crew’s safety support is especially useful for people who like the idea of the cave but do not want to handle the route alone.
The water stop is relatively short compared with Ceja Island. If cave swimming is your priority, pay attention when the boat reaches Kamenjak and be ready to get in. The boat later provides more relaxed swimming time at Ceja.
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Leaving Medulin aboard Sandra

Your starting point is Osipovica 18 at Medulin harbor. The boat is called Sandra, and it is described as the only red-and-yellow boat in the harbor. Look for spaces 32 or 33 and a red umbrella, where the local team waits near the boat.
I would arrive 30 to 45 minutes before departure. That may sound early for a five-hour boat ride, but harbor meeting points can be easy to miss, especially when several boats are loading at once. If you cannot find the team, call the local partner for help.
There is no hotel pickup or drop-off included, so you need to arrange your own way to Medulin harbor. The activity is listed as wheelchair accessible, but the cave swim and swimming stops naturally require you to consider your own water mobility and the practical help you may need.
Once aboard, the first part is a sightseeing cruise of roughly 50 minutes to an hour. You get time to look back at Medulin and out toward the archipelago before the boat reaches the open coastal scenery near Kamenjak.
Cape Kamenjak and its rocky southern coast

Cape Kamenjak Nature Park is the visual high point of the outward cruise. Expect cliffs, open sea, and a more rugged coast than the harbor area around Medulin. The boat moves close enough for you to appreciate the rock formations and the wildlife around the park.
The crew gives the tour in Croatian, English, and German. Ilia and Najwa are named as members of the team who help create a friendly, attentive atmosphere. That matters on a boat trip where the crew handles several jobs at once: guiding, serving drinks, preparing food, and helping people in and out of the water.
The water at Kamenjak is refreshing, not a heated pool. Pack your towel where you can reach it, rather than burying it under a seat or in a bag. A waterproof pouch for your phone is also sensible, though one is not specifically supplied.
You may use your own snorkeling gear. The trip includes a cave swim, but it does not promise a full guided marine-life program, so think of snorkeling as an optional way to enjoy the water rather than the central purpose of the day.
Porer Lighthouse adds a fine old landmark

After Cape Kamenjak, the boat continues toward Porer Lighthouse. The lighthouse sits on a small island and was built in 1846 during the Austro-Hungarian period. You see it from the boat as part of the coastal sightseeing rather than as a separate shore visit.
Porer gives the day a welcome change of pace. Kamenjak is about cliffs, water, and natural scenery. Porer is a compact human-made landmark in an exposed sea setting. The lighthouse is particularly useful as a reminder that this coast was important to ships long before it became a place for swimming excursions.
Do not expect a long historical talk or a tour inside the lighthouse. The information provided focuses on viewing it from the boat. Treat this as a scenic pass by a distinctive Istrian marker.
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Grilled lunch with a useful choice of main dish

Lunch is served aboard the boat, either while stopped or moving slowly. You choose from tuna steak, fish, meat, or a vegetarian dish. The meal comes with cabbage salad and ciabatta bread.
That range of choices is one of the practical strengths of the trip. A shared set menu can be awkward when people in the same group have different tastes, but here you have a clear option beyond fish and meat. If you want tuna, fish, meat, or vegetables, make your preference known to the crew.
The food is part of the value calculation. At $53 per person, you are not paying only for a boat seat and a short coastal cruise. The price also covers lunch, welcome drinks, and drinks throughout the ride. People who would otherwise buy lunch and several beverages separately will likely find the package appealing.
The upper deck has service, and the meal is eaten in a casual boat setting rather than a formal restaurant. That means the experience is social and relaxed, but you should not expect a polished dining room. The appeal is eating grilled food at sea, with the coast and islands moving around you.
Included drinks make the $53 price more attractive

Wine, beer, water, cola, and Fanta are included throughout the boat ride. There is also a welcome drink or schnapps. Both red and white wine are available.
This is a generous arrangement for a five-hour outing, particularly if you enjoy a cold drink after swimming. It also makes budgeting easier. You do not need to keep calculating the cost of each glass or bottle while onboard.
Use some judgment with alcohol, especially before the cave swim. The most active part of the tour comes before or around lunch, and the crew’s safety instructions matter more than squeezing in an extra drink. Water and soft drinks are included too, so you can stay comfortable without drinking alcohol.
Ceja Island operates differently. The island is cash only, and it has a restaurant and café bar if you want another snack, coffee, or drink. Bring cash if those extras matter to you. The included boat drinks do not remove the need for money on the island.
Ceja Island is a long, lazy final stop

After lunch, the boat heads to Ceja Island. You spend about two hours there, with time for swimming, sunbathing, or simply sitting by the water. The island stop is the most relaxed part of the day and gives you a chance to enjoy the Adriatic without being hurried from one sight to the next.
This length is both a benefit and a possible weakness. If you want a proper swim and plenty of sun, two hours is welcome. You can settle into the pace, cool off in the water, and use the restaurant or café bar if you want something more than what is served aboard Sandra.
If you prefer a busy sightseeing schedule, the pause may feel excessive. Two hours on a beach can seem long when the weather is cool, cloudy, or windy. Several ratings specifically point to the Ceja stop being a little too long for some people, while also recognizing that committed sunbathers may be perfectly happy with it.
I would choose this trip on a warm, calm day when swimming is part of your plan. If you mainly want coastal scenery and historic sights, a shorter cruise without a long beach stop might suit you better.
How the five hours are divided

The schedule gives you a clear sense of the day:
- Meet at Medulin harbor and board Sandra.
- Cruise for roughly 50 to 60 minutes toward Cape Kamenjak.
- Spend time around the cape with swimming, cave exploration, and wildlife viewing.
- Pass Porer Lighthouse on the way onward.
- Eat grilled lunch aboard the boat.
- Spend about two hours at Ceja Island.
- Cruise back to Medulin, arriving at Osipovica 18.
The timing is designed to balance activity and rest. The cave stop gives you the memorable moment. The lighthouse and coastal cruise provide scenery. Lunch handles the middle of the day. Ceja lets you slow down before returning.
The total duration is listed as five hours, though the precise time at each stop can shift with weather, sea conditions, and the captain’s judgment. A separate return sightseeing cruise is included, described as about 30 minutes in the supplied schedule.
Weather and comfort matter here

The captain decides whether conditions are safe enough to operate. Strong wind or bad weather can lead to cancellation and rescheduling. That is sensible for a small coastal excursion with cave swimming, but it means you should avoid placing this as the only fixed activity on a tight final day in Istria.
Wear swimwear under easy-to-remove clothes. Bring a towel and sunscreen. You should also bring snorkeling gear if you want to use it, since the trip specifically advises that you bring your own equipment.
The boat is accessible, but the exact mechanics of the cave swim are not described. If you use a wheelchair or have limited mobility, confirm the practical arrangements with the operator before booking, especially if you plan to enter the water. The accessible boat listing does not automatically mean every water activity will suit every passenger.
Who will get the most from this boat trip?
I think this outing works best for you if you want several pleasures in one booking: a coastal cruise, a short water adventure, a cooked meal, drinks, and a beach stop. Families and mixed groups can appreciate the range of choices, since one person can swim while another stays on deck or enjoys the island café.
It is also a good fit for visitors staying around Medulin or Premantura who want to see Cape Kamenjak without arranging their own boat. The live guide service in Croatian, English, and German is useful for international groups.
You may want to skip it if you dislike group boat outings, cannot comfortably swim, or want a tightly packed sightseeing day. The Ceja stop is intentionally unhurried, and the cruise focuses more on scenery and leisure than on long historical explanations.
The 4.4 rating from 365 bookings suggests a generally strong experience with some predictable differences in taste. The most praised elements are the crew, the cave swim, the food, the drink selection, and the organization. The most consistent reservation is the length of the island stop.
Is this Medulin boat trip worth booking?
At $53 per person, I consider it good value if you will use the lunch, included drinks, cave swim, and Ceja stop. Buying those parts separately would take more planning and could cost more, while this trip keeps the day simple.
Book it if the underwater cave and swimming are your priorities, and choose a good-weather day if you can. Arrive early at the red-and-yellow Sandra, bring cash for Ceja, and prepare for two hours of beach time.
Skip it if you want more time at historic sights, a short boat ride, or a faster-moving schedule. For the right kind of day, though, this is a practical way to combine Kamenjak’s rocky coast with a memorable swim and a relaxed meal at sea.
FAQ
Where does the boat trip start?
It starts at Osipovica 18 in Medulin harbor. Look for the red-and-yellow boat called Sandra at harbor spaces 32 or 33, near the red umbrella.
How early should I arrive?
You should arrive at least 30 to 45 minutes before departure.
What is included in the price?
The price includes the boat cruise, welcome drinks, lunch, and drinks throughout the ride. Lunch choices include tuna steak, fish, meat, or a vegetarian menu.
Which drinks are included?
Included drinks are red and white wine, beer, Fanta, cola, and water. A welcome drink or schnapps is also provided.
Is swimming in the cave part of the trip?
Yes. At Cape Kamenjak, you enter and explore an underwater cave with a crew member nearby for safety.
How long do you spend on Ceja Island?
You spend about two hours on Ceja Island, with time for swimming and sunbathing. The island also has a restaurant and café bar.
Should I bring snorkeling equipment?
Yes. The activity information advises you to bring snorkeling gear if you want to use it, along with swimwear, a towel, and sunscreen.
Is hotel pickup included?
No. Hotel pickup and drop-off are not included, so you need to make your own way to the Medulin harbor meeting point.
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