Reviewed · CRUISES & BOAT TOURS
From Ag Anna: Rina’s Cave and Ano and Kato Koufonisi Cruise
This cruise is interesting because it pairs a hard-to-reach sea cave stop with a laid-back day on the Koufonisia islands, done from a proper 25-meter sailing boat. You get that rare feeling of going somewhere by sea that most people just cannot access any other way.
I especially like the hands-on, do-it-yourself vibe at the water stops, with snorkel equipment and the chance to jump in and swim around Rina’s Cave. I also like the lunch setup onboard, run family-style by the people cooking on board, using Naxian products and serving big, practical portions after you’ve worked up an appetite.
One thing to weigh is that this is not a guided sightseeing tour with much history or constant commentary. Also, it is a day built on sea travel, and it is not suitable if you get seasick easily or you are not confident swimming.
Key highlights to know before you go

- Rina’s Cave is the main event, reached by boat and paired with swimming plus time on a nearby pebble beach
- BBQ lunch onboard is included, with Greek salad, potatoes, pasta, rice, spetzofai, souvlaki skewers, bread, fruit, and more
- Free time on Ano Koufonisi is yours, for cobbled alleys, beaches, and even a low-cost sea taxi to other spots
- Kato Koufonisi is a weather-dependent stop, so the plan can shift with wind and sea conditions
- Sunbed space is limited, especially the front ones, so get there early if that matters to you
Pricing and what makes it good value at $94

For $94 per person, you are buying a full, structured sea day: sailing time, multiple swimming stops, and an included lunch with wine and soft drinks during the meal. That combination matters because you would normally pay separately for boat access to a remote cave, then for a paid beach day, then for food. Here, those pieces come bundled.
The other value point is timing. You leave in the morning, you spend solid blocks of time at the water, and you return the same evening. It is not a half-day snack of a cruise, it is long enough to feel like a real day out.
Just remember this is a relaxation-first day. If you want lots of guided explanations at each stop, you might feel underfed on context. The crew is there for help, but there is no onboard guide giving a running narrative.
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Mikros Kosmos II and your first smart move: claim your spot early

You meet at the taxi piazza dock area in Agia Anna, and you are looking for the sailing boat Mikros Kosmos II. If your hotel uses a free transfer option, that can help, but your best move is to arrive with enough buffer time so you are not rushing the boarding process.
On a 25-meter boat, your comfort can change fast depending on where you park yourself. Many people prioritize the sunbeds near the front, and those spaces are limited. If you want the best views and the easiest swim access, showing up early gives you a real edge.
Practical tip: bring your hat and sunscreen even if the day looks calm. Shade exists, but it is not guaranteed everywhere, and the sun can catch you during long sail segments.
Sailing time along Naxos West Coast, then straight into the cave stop

After you depart around 09:45 from Agia Anna, the boat heads along the west coast of Naxos. You reach Rina’s Cave in about 1.5 hours, and the tour is built so the first big payoff comes early.
That early-to-midday pacing is a smart trade-off. You get the most energetic part of the day when your body is fresh, then you can eat lunch and relax while you still have energy for exploring later at Koufonisia.
Also note the reality of sea days: winds can affect the precise timing and how the route plays out. One reason this works for some people and feels long for others is that you are on the water for a big chunk of the day, not just hopping between ports.
Rina’s Cave: why this sea approach feels special

Rina’s Cave is the standout stop because it is effectively unreachable on foot. You arrive by boat, then you get about 1.5 hours to enjoy it at water level.
What you can do there is practical and flexible:
- Swim in the cave area
- Snorkel with the provided gear
- Step onto a nearby pebble beach
- Use the jump-in option if you feel adventurous and comfortable (the crew provides safety gear like life jackets)
The cave stop also has a built-in contrast. You are in a very enclosed, dramatic setting, then you shift to a pebble beach feel nearby. That mix makes it more than just a one-note photo stop.
If you are the type who loves a little exploration, this is where you will feel in control. There is no guide herding you around. You can take it slow, swim at your own pace, and then regroup with the crew.
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Lunch onboard BBQ: what you actually eat, and why it tastes better here

Lunch is served onboard after you return to the boat from the water stop. Expect a BBQ style meal using local Naxian ingredients, and it is set up for efficiency so you are not waiting forever after swimming.
The menu is detailed, which is useful when you are planning what to bring for yourself:
- Greek traditional salad
- Oven potatoes
- Pasta
- Spetzofai
- Rice with vegetables
- Fresh bread
- Pork or chicken skewers (souvlaki)
- Fresh fruit
Vegetarian options are built around the same meal base, with the non-meat portion still plenty filling: salad, potatoes, vegetable rice, and the rest of the sides.
What I like about this lunch plan is the timing. Food hits while you are still warmed up from swimming, and it is much easier to enjoy a simple, hearty meal after you have been active. Also, you get wine and water with lunch, plus soft drinks like Coca-Cola, Sprite, and orange juice during the meal.
Two small notes to keep you realistic:
- Beer, cocktails, and extra snacks are not included, and you can buy them onboard
- Wine is included, but it is still just part of a cruise lunch, not a wine-tasting event
If you want to feel your best later at Koufonisia, eat normally, not huge. After a cave swim, you do not need to overdo it.
Ano Koufonisi for 3 hours: cobbled alleys, swimming, and low-cost beach hopping

After lunch, the boat continues toward Koufonisia, with a weather-dependent stop at Kato Koufonisi first. Then you get your main island time at Ano Koufonisi, with a 3-hour free stop.
That free-time structure is why this tour works for many people. You are not trapped in a schedule of constant walking. You can choose your rhythm:
- Stroll the village alleys
- Swim at nearby beaches
- Relax on the waterfront
- If you want more variety, you can take a sea taxi to visit other beaches for a low cost
Ano Koufonisi is the kind of place where 3 hours can feel just right. It is enough time to wander without feeling rushed, and it gives you a second chance to enjoy the water after the cave.
The practical tip here is to decide early how you will spend those 3 hours. If you want beach time, bring your towel and set up fast. If you want village time, do it before you get too sun-tired, because swimming can take the energy out of you.
Kato Koufonisi: what the uninhabited feel means for your day

Kato Koufonisi is uninhabited, and the stop is described as weather permitted. That matters because this kind of coastline stop depends on conditions and safe access.
So here is how I would plan your expectations. If Kato happens, you get another scenic water moment and a chance to see the island feel firsthand. If the day is windy or conditions shift, your schedule can adjust. The overall goal stays the same: more time in water, less time on a strict land itinerary.
This is also why it helps to book with a relaxed mindset. You are not signing up for fixed, guaranteed timing at every minute. You are signing up for a sea day, and the sea gets the final vote.
Comfort, seasickness, and how to make the long return feel shorter

This tour is about a full 8.5 hours, and there is a return sail that can feel longer depending on wind. That is especially important if you get tired on boats or if you are not used to sea movement.
The tour is not suitable for people prone to seasickness, and I agree with that warning. If you fall into that category, do not gamble. Pick a different day trip that is more shore-based.
If you are a comfortable sailor, do a few things to make the day smoother:
- Pack a small beach kit so you are not scrambling during stops
- Bring personal medication if you need it
- Use the life jackets and any provided floating gear when you are in the cave or near jump-in zones
- Bring something to pass the long ride back, like a book or light game
Also, keep your footwear realistic. High-heeled shoes are not allowed, so wear something that works around boat steps and wet decks.
Who this cruise fits best, and who should skip it

I think this cruise fits best if you want a classic Aegean boat day built around water time, food, and independent exploration. It is a strong match for couples, friends, and families with kids old enough to be comfortable around open water.
It is also ideal if you care about practical included value: lunch with real portions, drinks during the meal, snorkel equipment, and sunbathing space.
Skip it if any of these are true:
- You need a guided, history-heavy experience. There is no guide onboard, and you should not expect a detailed narrative as you sail.
- You cannot swim or you are not comfortable in open water. The tour is explicitly not suitable for non-swimmers.
- You are prone to seasickness. The sea day is a core part of the experience.
Should you book this Rina’s Cave and Koufonisia cruise?
Book it if you want one of the most straightforward ways to reach Rina’s Cave by sea, then spend a few hours on Ano Koufonisi doing your own thing. The combination of cave access, included lunch, and free island time is genuinely good for the price, especially if you like swimming and relaxing instead of museum-style tourism.
Pass if you are expecting a structured sightseeing tour with lots of history and step-by-step guidance. This is more about the day on the water than a guided lesson. And if seasickness is a concern, do not force it.
If you decide to go, my final advice is simple: get to the boat early for the best sunbed chances, pack for water weather, and plan to treat the island stop as your personal choose-your-own-adventure time.
FAQ
How long is the cruise and what are the main times?
The tour runs about 8.5 hours, departing around 09:45 from Agia Anna port and returning at approximately 19:00.
Where do I meet, and what boat is it?
You meet at the taxi piazza dock in Agia Anna. Find the sailing boat Mikros Kosmos II, and free transfer may be available from specific meeting points, so ask ahead.
What is included in the lunch and drinks?
Lunch onboard includes a full BBQ-style meal with items such as Greek salad, oven potatoes, pasta, spetzofai, rice with vegetables, fresh bread, pork or chicken souvlaki skewers, and fresh fruit. During lunch you also get wine, water, and soft drinks like Coca-Cola, Sprite, and orange juice.
Is there a guide onboard during the trip?
No guide is onboard. There is crew support available for anything you need, but you should expect more of a relaxed, independent pace than guided commentary.
Can I join if I do not swim well or I get seasick?
No. The cruise is not suitable for non-swimmers and is also not suitable for people prone to seasickness.
What should I bring for the water stops?
Bring swimwear, a towel, sunscreen, sunglasses, and a sun hat. Also bring beachwear and any personal medication you may need.
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