REVIEW · CAVE BOAT

From Ag Anna: Rina’s Cave and Ano and Kato Koufonisi Cruise

4.2 · 504 reviews 8.5 hours From $94 Operated by Naxos Island Tours · Bookable on GetYourGuide
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Rina’s Cave is the star of this trip. After sailing along Naxos’s west coast, you reach a sea cave and pebble beach that can only be approached by boat. I like the combination of swimming in clear water and a freshly prepared lunch, and I like that you get three unhurried hours on Ano Koufonisi. The tradeoff is a long day at sea, with limited shade and a real chance of seasickness in rough weather.

I also like the relaxed format. You are not following a guide through a packed schedule. You can claim a lounger, swim, eat, sunbathe, or wander off on your own. Just do not expect much historical commentary, and arrive early if you want one of the limited front sunbeds.

Key points to know before booking

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Key points to know before booking

  • Rina’s Cave is reached only by sea: You can swim near the cave, reach the nearby pebble beach, and use the water spring there.
  • The lunch is a major part of the value: Expect souvlaki, salads, potatoes, pasta, rice with vegetables, spetzofai, bread, fruit, and vegetarian choices.
  • Ano Koufonisi gets about three hours: Use the time for the village, nearby beaches, or a low-cost sea taxi to farther beaches.
  • Kato Koufonisi depends on conditions: Strong wind can change the route or leave you with more time at the uninhabited island.
  • The boat ride is long: The outbound trip takes about 1.5 hours to Rina’s Cave, and the return can feel longer when the wind rises.
  • Sunbeds are limited: Early arrival improves your chance of getting a front lounger, while shade is not available everywhere.

Rina’s Cave makes this Naxos boat trip different

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Rina’s Cave makes this Naxos boat trip different

Many Greek boat outings promise blue water and a few swim stops. This one has a clearer centerpiece: Rina’s Cave, on the southern side of Naxos and reachable only from the water. You do not simply photograph it from offshore. The boat stops for about 1.5 hours, giving you time to swim near the cave, snorkel, and reach the small pebble beach nearby.

If you are confident in the water, you can jump from the boat. Life jackets, snorkel equipment, floating noodles, and other basic safety equipment are available, but this is not the right excursion for a non-swimmer. The swimming stop is active rather than passive, and the crew does not provide a formal guided lesson.

The nearby spring adds a small sense of discovery to the stop. This is a rugged, sea-access-only place, not a developed beach with changing rooms, cafés, or easy access from land. Bring your towel and beachwear, and keep your belongings organized on the boat.

A relaxed start from Agia Anna at 9:45

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - A relaxed start from Agia Anna at 9:45

The meeting point is the taxi piazza at Agia Anna, where you look for the 25-meter sailing boat Mikros Kosmos II. A free transfer is available from specific meeting points, but you need to ask the operator about the pickup location and time rather than assume your hotel is included.

I would arrive early. The front sunbeds are limited, and people tend to hold their preferred places for the full day. If you arrive after the best loungers are taken, you may end up on the upper deck or in a less shaded spot. That is not a problem for everyone, but it matters on an eight-and-a-half-hour outing under the Greek sun.

The boat is described as spacious and comfortable, though seating preferences vary. Some people appreciate the sunbeds and open views, while others may want more comfortable seating for the long sailing stretches. Take a book or a simple game for the return journey, especially if you enjoy the water but do not want to sunbathe for hours.

The sailing along Naxos’s west coast

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - The sailing along Naxos’s west coast

The first stretch takes about 1.5 hours to Rina’s Cave. It is part of the experience, not merely transport. You see Naxos from offshore, watch the coast recede, and spend time on a large sailing boat rather than rushing between short stops.

There is no onboard guide giving a detailed account of the islands or the sights. The crew is available when you need help, but you should choose this trip for the sea time and swimming rather than for archaeology, geography, or local storytelling. If learning the background of every island matters to you, bring a guidebook or choose a tour that advertises a dedicated guide.

Wind affects the pace. The boat can feel slow on the way back, and some departures have taken longer when conditions pick up. This is worth accepting before you book. You are choosing a full day on the Aegean, with all the beauty and motion that brings, not a fast ferry transfer.

If you tend to get seasick, take that seriously. One stop can be beautiful, and the food can be excellent, but rough water will still be rough water. Sit where you feel most stable, bring any personal medication you need, and tell the crew if you require help.

Swimming, snorkeling, and lunch at Rina’s Cave

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Swimming, snorkeling, and lunch at Rina’s Cave

The stop at Rina’s Cave gives you a good balance of activity and rest. You can swim around the cave, snorkel from the boat, walk onto the pebble beach, or stay on deck and watch the crew prepare lunch. The water is the main attraction, and the cave provides the kind of setting that feels more special than a standard beach stop.

The meal is served onboard and is more substantial than a basic sandwich lunch. The spread can include:

  • Pork or chicken souvlaki
  • Greek salad
  • Oven potatoes
  • Pasta
  • Rice with vegetables
  • Spetzofai
  • Fresh bread
  • Fresh fruit
  • Vegetarian dishes, including salad, potatoes, and rice with vegetables

Wine, water, Coca-Cola, Sprite, and orange juice are provided with lunch. Beer, cocktails, extra soft drinks, and snacks cost more. The portions are generous, so I would eat a light breakfast. After swimming, the hot food is especially welcome.

Vegetarians have a clear set of choices, and vegan options should be discussed in advance because the operator asks you to report food allergies and meal needs. Do not wait until boarding if you have a serious allergy. Give the full details before the trip so the kitchen can plan.

The food is home-style rather than polished restaurant cuisine. That is part of the appeal. You get local dishes, bread, salad, and hot food prepared for a boat full of hungry swimmers. The included wine is useful with lunch, though you should not expect a premium wine experience.

Kato Koufonisi depends on the wind

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Kato Koufonisi depends on the wind

Kato Koufonisi is uninhabited, and the stop is weather permitting. That phrase matters. The Cycladic wind can force the captain to alter the route, and the schedule is not guaranteed in every condition.

When the boat reaches Kato Koufonisi, the reward is mainly the water and the quiet setting. There are not many services or organized activities there, so you will want to swim, take photographs, and enjoy the feeling of being away from a developed port. If you prefer shops, cafés, and a village to explore, Ano Koufonisi is the more useful stop.

The route can change when the weather does. Some departures have spent more time around Kato Koufonisi when reaching Ano Koufonisi was not possible. That is not necessarily a poor day, but it can be disappointing if your main reason for booking is the village and beaches of Ano Koufonisi.

Three hours to make your own plan on Ano Koufonisi

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Three hours to make your own plan on Ano Koufonisi

Ano Koufonisi is where the tour becomes more independent. You get about three hours, enough time to walk through the village, visit nearby beaches, shop, or take a sea taxi to another beach at a modest additional cost.

I like this part because the time is not over-managed. You can stroll the cobbled alleys, find a swim, sit down for a drink, or focus on the water. The island is compact enough to enjoy without a packed sightseeing program, although you should keep an eye on the departure time.

Ammos Beach is one possible target, and the water around Koufonisi is a highlight of the day. If you want to combine a village walk with a beach swim, plan your route before leaving the boat. Three hours sounds generous, but it goes quickly if you stop for food, browse shops, and walk to the coast.

A sea taxi can help you reach other beaches during the free period. The cost is not included, so carry a little extra money if you want that option. If you prefer not to spend more, the village and nearby shore still give you plenty to do.

The return to Agia Anna takes patience

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - The return to Agia Anna takes patience

Departure from Ano Koufonisi is planned for about 5:15 p.m., with arrival at Agia Anna around 7 p.m. The return can be the longest-feeling part of the day. Wind may slow the boat, and you are likely to be tired after swimming and walking.

This is when the boat’s seating arrangement matters. A front sunbed is pleasant for the outward journey, but people may keep their places while you are ashore, leaving fewer good spots when you return. If you care about shade or a particular view, discuss the arrangement with the crew rather than assuming the deck will be reorganized.

The trip sometimes includes another swim stop on the way back, depending on the route and conditions. Treat that as a possible bonus, not a promise. At the end of the day, the crew may serve watermelon and a homemade sweet, a simple but welcome finish after several hours outside.

Crew, atmosphere, and the limits of the format

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Crew, atmosphere, and the limits of the format

The operation has a family-run feel, with friendly and helpful crew members handling the food, boat, and guests. The captain is described as entertaining, and music contributes to the holiday mood. This is a social day out, not a silent luxury cruise.

English communication may be limited at times. The crew can help with practical needs, but explanations about the route may be brief. There is also no full historical commentary, so you should not book this expecting a formal tour of Naxos or Koufonisi.

One practical point deserves attention: a safety briefing is not always clearly provided. Life jackets and other equipment are available, but if you want a full explanation of emergency procedures, ask at the start. That is sensible on any boat, especially if you are traveling with children.

Unaccompanied minors are not allowed, and the activity is not suitable for wheelchair users. High heels are not allowed, which is easy to solve with flat sandals or water shoes. The trip is also a poor match for anyone who cannot swim or is prone to seasickness.

Is $94 good value for an 8.5-hour day?

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Is $94 good value for an 8.5-hour day?

At $94 per person, this is strong value if you want a full day on the water. The price includes the boat trip, the Rina’s Cave stop, the planned island time, a large onboard lunch, water, lunch drinks, sunbeds, snorkel equipment, life jackets, and floating aids.

You are also covering the cost of reaching Koufonisi without arranging separate ferry tickets, transfers, or meals. The value is strongest for people who would otherwise spend a day paying for transport and food while trying to combine several islands.

It is less compelling if you want a small yacht, quiet service, or a detailed local guide. You are paying for a large boat, a long sailing day, good swimming stops, and an abundant meal. You are not paying for private attention or a carefully narrated cultural tour.

Free cancellation up to 24 hours before departure and the option to reserve and pay later make planning easier. Still, check the pickup details carefully. One reported transport mix-up caused serious stress before boarding, so confirm the meeting point and time in writing if you use the transfer service.

Who should book this cruise?

I would choose this trip if you want to swim in striking coastal water, enjoy a generous Greek meal, and see Koufonisi without arranging the day yourself. It suits confident swimmers, couples, families with older children, and anyone who likes a balance of sun, sea, food, and free time.

I would skip it if your priorities are quiet luxury, wheelchair access, a short boat ride, or detailed commentary. I would also think twice if you dislike wind, motion, limited shade, or waiting through long stretches between stops.

Book early enough to secure a good place on the boat, pack a hat, towel, sunscreen, sunglasses, swimwear, beachwear, and personal medication. Most important, go in expecting a relaxed family boat day with weather-dependent stops, not a tightly scripted sightseeing tour.

FAQ

Where does the cruise leave from?

It leaves from the taxi piazza at Agia Anna, where you should look for the sailing boat Mikros Kosmos II.

What time does the cruise depart and return?

Departure is scheduled for 9:45 a.m. and return to Agia Anna is planned for about 7 p.m., making the total duration about 8.5 hours.

How long is the stop at Rina’s Cave?

The planned stop at Rina’s Cave is about 1.5 hours.

Can I swim at Rina’s Cave?

Yes. You can swim near the cave, snorkel, use the floating equipment, and reach the nearby pebble beach when conditions allow.

Is lunch included?

Yes. An onboard barbecue-style lunch is included, with dishes such as souvlaki, Greek salad, potatoes, pasta, rice with vegetables, spetzofai, bread, and fruit.

Are vegetarian meals available?

Yes. Vegetarian choices include Greek salad, oven potatoes, and rice with vegetables. You should report food allergies and meal needs in advance.

Are drinks included?

Water is included, and Coca-Cola, Sprite, orange juice, and wine are provided during lunch. Beer, cocktails, extra soft drinks, and snacks can be bought onboard.

How much time do I get on Ano Koufonisi?

The planned stop is about three hours, giving you time to walk, shop, swim, visit nearby beaches, or take a sea taxi.

Is Kato Koufonisi always included?

No. The Kato Koufonisi stop depends on weather and sea conditions. The captain may alter the route when wind makes the planned itinerary unsuitable.

What should I bring?

Bring sunglasses, a sun hat, swimwear, a towel, sunscreen, beachwear, and any personal medication you need. High-heeled shoes are not allowed.

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