Naxos: Rina Cave-Koufonisi Cruise & Rina Cave Swim with BBQ

The best part of this full-day cruise is the chance to reach places that are hard to see from Naxos alone, especially Rina Cave and the clear coves around Koufonisia. You swim from the boat, snorkel with provided gear, and spend time on an island instead of simply sailing past it.

I like the fresh charcoal-grilled souvlaki lunch and the crew’s warm, social style. Guides such as Polina and Evangelo help keep the long sailing time lively with music, stories, drinks, and good humor. The main drawback is the boat’s size: with up to 100 people aboard, it can feel tight in July and August, and the ride to the first stop takes nearly two hours.

Key points at a glance

• Rina Cave swim: Jump from the boat or use a ladder to enter the cave’s clear water.
• Three water stops: Swim and snorkel around Kato Koufonissi, Ano Koufonissi, and Rina Cave.
• Fresh Greek BBQ: Eat pork or chicken souvlaki with salad, tzatziki, bread, and fruit.
• Real island time: Spend about two and a half hours exploring Ano Koufonissi on foot.
• Drinks included: Water, soft drinks, coffee, and local wine are served during the day.
• Plan for a full boat: IASON carries up to 100 people, so peak-season space may feel limited.

Why this cruise works for a day from Naxos

Naxos has fine beaches, but a boat trip lets you see a different side of the island and the Small Cyclades. Instead of spending the whole day at one beach, you move through several settings: the eastern coast of Naxos, a quiet stop near Kato Koufonissi, the small settlement of Ano Koufonissi, and Rina Cave on Naxos’s southern coast.

The cruise leaves from the small pier at Agia Anna at about 9:30 in the morning and lasts roughly 9.5 hours. That is a serious commitment, but the schedule gives you a full day on the water without needing to organize ferries, taxis, meals, and beach stops yourself.

The traditional IASON wooden boat adds character. This is not a private yacht with a personal sunbed for every passenger. It is a friendly, shared boat trip, with music, a barbecue on the back of the boat, drinks passed around, and plenty of chances to chat with people from different countries.

I would choose this trip if you want a social day with swimming and scenery. I would think twice if you dislike long boat rides, crowded decks, or choppy water. Wind can make the journey slower and less comfortable, and the captain may need to change the route or skip a cave stop for safety.

The ride along Naxos’s eastern coast

The first part of the journey takes about one hour and 45 minutes. You travel along Naxos’s eastern coast, passing bays and open Aegean water before reaching the Koufonisia area.

That sailing time is one of the main things to consider. Some people will enjoy sitting back with coffee, watching the coast, and listening to music. Others may find the trip long, especially if the sea is rough. The crew works hard to keep the mood upbeat, but no amount of music can remove motion sickness for someone who is sensitive to waves.

Take your own practical precautions. Eat lightly before departure, bring sunscreen, sunglasses, a hat, and a towel, and wear swimwear under weather-appropriate clothing. The boat provides life jackets, lifebuoys, and pool noodles, but you should still pay attention to crew instructions around the water.

The crew also provides water and soft drinks. Local wine begins to flow around the first stop, and beer and snacks cost extra. That arrangement keeps the included food and drink offer clear, but you should bring money if you want something beyond the standard selection.

Kato Koufonissi: lunch beside the water

Kato Koufonissi is the first major stop, and it sets the tone for the day. The boat does not dock at the island. Instead, you remain aboard and use the ladders to enter the sea near the shore.

This detail matters. If you imagined walking onto a quiet island beach at Kato Koufonissi, adjust your expectations. The reward is a swim stop with striking water and views rather than a land excursion. You can snorkel, use a pool noodle, or simply float beside the boat.

The lunch is served here, with a charcoal grill operating on the back of the boat. The standard plate includes pork or chicken souvlaki, salad with tomatoes, potatoes, peppers, and onions, tzatziki, fresh bread, and fruit. The food is simple Greek fare, but cooking the skewers fresh on board makes the meal feel like part of the experience rather than a packed lunch.

The portions are distributed in an orderly line, which helps make sure everyone receives a fair serving. Fresh bread, salad, and fruit balance the grilled meat, and water, soft drinks, and wine are available. The meal is one of the strongest value points of the cruise because you are not paying separately for lunch at a waterfront restaurant.

Vegetarian and vegan options can be requested. The vegan menu includes salad, solmadakia, which are vine leaves stuffed with rice, and gigantes, or butter beans. Ask for dietary changes in advance so the crew can prepare properly.

Kato Koufonissi is also where the social side of the cruise becomes clear. The crew checks on people, offers drinks, and keeps the atmosphere relaxed. Polina is often singled out for her friendly hosting, while Evangelo has been praised for his stories, dancing, and sense of fun. The exact crew can vary, but the service style is clearly informal and attentive.

Ano Koufonissi: a useful island break

After lunch, the boat makes the short trip to inhabited Ano Koufonissi. You have about two and a half hours to explore, though the exact timing may vary slightly with conditions.

This is the only proper land stop, so use it well. Walk through the small settlement, browse shops, find a café, or head toward the nearby beaches. The island is known for clear water and pretty coastal views, and the stop gives your legs a break from the boat.

Sofia’s Cafe is a popular place to pause for Greek coffee or dessert. Orange pie has been a particular favorite, and the church area provides a pleasant point for taking in the sea views. You can also use this time for a short swim from one of the island’s beaches.

I like that the cruise includes real free time here. Many boat trips give you only enough time to take a photo and return to the gangway. This one lets you get a small taste of island life. Still, the balance will not suit everyone. If swimming is your main goal, you may wish the stop were shorter and the water time longer. If you enjoy wandering and sitting at a café, Ano Koufonissi is an important part of the day.

The town can also feel quiet outside the main summer period, with some businesses closed. That is not necessarily a problem, but do not expect a long list of open attractions. The pleasure is in walking, looking at the water, and enjoying a slower hour or two.

Rina Cave: the day’s signature swim

The final major stop is Rina Cave, a natural opening on the south coast of Naxos. This is the moment many people remember most.

You can enter the water by jumping from the boat or climbing down a ladder. You do not need to jump. The ladder gives you a calmer option, especially if you want to swim inside the cave without taking a leap from the deck.

Inside, the light and rock create a striking setting for swimming and photographs. You can use the supplied mask and snorkel to look below the surface, though visibility and sea conditions will vary. Pool noodles are also available if you prefer to relax in the water rather than swim hard.

The cave stop lasts about an hour, but the actual swim can feel shorter once everyone has entered the water and taken photos. Several people would happily trade some of the village time for a longer stay here. If Rina Cave is your main reason for booking, keep that in mind.

Cliff jumping is optional, not a requirement. The crew provides safety equipment and directs the activity, but you should judge the jump by your own comfort and ability. The boat may not visit the cave at all if high winds or rough seas make the stop unsafe. In that case, the operator reschedules the cruise or offers a full refund.

Food, drinks, and the social mood

The barbecue is more than a useful inclusion. It gives the middle of the day a clear Greek focus, with souvlaki grilled fresh on the boat and familiar side dishes served buffet-style. The food is not a fancy restaurant meal, but it is generous, fresh, and well suited to a day of swimming.

Wine, coffee, water, and soft drinks are included. The crew also serves fruit, including refreshing watermelon later in the day. Beer and snacks cost extra, so plan accordingly if you want more than the included drinks.

The music helps set the tone. Expect a cheerful boat rather than a quiet sailing charter. The crew may take song requests, and music from Greek favorites to familiar pop can turn the return journey into a small party.

That atmosphere is a real advantage for solo visitors and groups who like meeting people. It may be less appealing if you want a peaceful, private day. I would describe the mood as friendly and playful, not formal or luxurious.

How crowded is the IASON boat?

The boat can carry up to 100 people. At quieter times, such as the beginning or end of the season, it may feel comfortable and spacious. In the busy summer months, the deck can become crowded, especially when everyone returns from a swim or gathers for lunch.

You may find it harder to move around when the boat is full. Space for prime seating is limited, and this is not the type of trip where each person has a reserved lounge chair. Arrive on time and choose your preferred spot early if sitting in a particular area matters to you.

The trade-off is price and atmosphere. At $106 per person, you receive the cruise, three swim stops, the island visit, lunch, drinks, coffee, snorkeling equipment, and safety gear. Organizing these elements separately would be difficult and could easily cost more, especially once you add a meal and boat transport.

I consider the price fair for a full day, particularly if you use all three swim stops and spend time on Ano Koufonissi. The value is weaker if you dislike swimming or plan to stay dry, since much of the day is built around getting into the sea.

Who should book this Naxos cruise?

This trip suits you if you want:

• A full day away from Naxos’s main beaches
• Several opportunities to swim and snorkel
• A relaxed Greek meal cooked on board
• A social atmosphere with music and wine
• A short introduction to Ano Koufonissi
• A guided boat day without planning every detail yourself

Families can enjoy the trip, and the crew pays attention to passengers who feel unwell. Still, children should be comfortable around open water and follow directions closely. The cave jump is optional, and the ladder gives swimmers a gentler way in.

You should be cautious if you suffer from motion sickness. The route to Koufonisia takes nearly two hours, and wind can make the ride choppy. High winds may also change the itinerary.

The activity is also not designed for nudity, and swimwear should be paired with suitable clothing for the sailing portions. Bring a towel, sunscreen, sunglasses, and a hat. Snorkel equipment and life jackets are supplied, so you do not need to pack your own gear.

Booking advice and final verdict

I would book this cruise if I wanted one big sea day from Naxos, especially during a first visit when there is not enough time for full island hopping. The mix of swimming, a fresh BBQ, an island walk, and Rina Cave gives the day more variety than a simple beach transfer.

Book it with realistic expectations. The boat may be crowded, the first sailing is long, and the cave stop depends on weather. But if you enjoy clear water, easygoing company, Greek food, and a little adventure, the $106 price is reasonable. Choose a quieter travel period if you want more room, and keep your schedule flexible in case wind affects the route.

FAQ

Where does the cruise depart from?

The cruise departs from Jason Daily Cruises at the small port in Agia Anna, Naxos.

How long does the activity last?

The cruise lasts about 9.5 hours and departs at approximately 9:30 in the morning.

Is lunch included?

Yes. The standard BBQ meal includes salad, tzatziki, fresh bread, pork or chicken souvlaki, and fresh fruit.

Are vegan or vegetarian meals available?

Yes. Vegan options include salad, solmadakia, and gigantes. You can request meal modifications.

Does the boat dock at Kato Koufonissi?

No. The boat remains offshore, and ladders are available so you can swim in the sea near Kato Koufonissi.

Is snorkeling equipment provided?

Yes. Snorkel equipment, life jackets, lifebuoys, and pool noodles are included.

What happens if bad weather cancels the cruise?

If high winds or rough seas cause cancellation, you can be rescheduled for another date or receive a full refund.