Reviewed · CRUISES & BOAT TOURS

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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Saltwater courage gets rewarded fast. This day trip pairs sea time with Rina’s Cave swim access that feels remote, plus a satisfying BBQ lunch onboard using local Naxian ingredients. The main catch is that you spend a big chunk of the day sailing, so if you get seasick or you prefer land-only plans, this may not be your style.

I like how the schedule balances set-piece moments with real freedom: 1.5 hours at the cave, then around 3 hours on Ano Koufonisi to wander cobbled streets and choose your beach time. You’ll also get the uninhabited vibe at Kato Koufonisi when weather allows. One thing to consider upfront is that there is no guide giving site history on board, so treat it as a swim and scenery day, not a lecture.

Key highlights worth planning around

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Key highlights worth planning around

  • Sea-only access at Rina’s Cave, with time to swim, snorkel, and explore a nearby pebble beach.
  • Lunch cooked onboard, served right after your water time, with vegetarian and vegan options.
  • Ano Koufonisi free time, enough for village strolling, swims, and quick beach-hop by sea taxi.
  • Kato Koufonisi stop when weather cooperates, short, scenic, and geared toward enjoying the water.
  • Sunbed reality check, front spots fill early, so arrive early if you care about shade.

Setting Sail From Agia Anna on a 25-Meter Sailing Boat

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Setting Sail From Agia Anna on a 25-Meter Sailing Boat
This cruise runs from Agia Anna port, departing at 09:45 and returning around 19:00. The boat is a 25-meter sailing vessel (Mikros Kosmos II), and the day is designed for relaxing aboard while you do a few swims and explore on your own. There is no guide walking you through history, but the crew stays around to help you when you need gear or directions at the stops.

The overall rhythm is simple: travel, swim, eat, explore, repeat, then sail home. Reviews consistently highlight a family-run feel, especially around lunch prep. In practice, that matters because you’ll feel less like you’re “part of a crowd” and more like you’re being fed and looked after at sea.

Value-wise, this is priced at $94 per person, and you’re not just paying for transportation. The lunch is included, basic drinks are included at lunch, and you also get access to sunbeds and snorkeling equipment. If you were doing this day independently, you’d likely pay separately for boat transport, meals, and paid swim-stop logistics.

Other ways to spend the day near Greece

Rina’s Cave: The Swim Stop Everyone Talks About

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Rina’s Cave: The Swim Stop Everyone Talks About
The day’s first big moment is Rina’s Cave, reached in about 1.5 hours after leaving Agia Anna. You get about 1.5 hours there, which sounds short until you picture how the time gets used. You’ll want a few minutes to settle your gear, then you’ll probably spend most of the stop either swimming in the cave area, snorkeling, or moving over to the nearby pebble beach.

This is the kind of place that feels special because it is truly hard to reach on foot. Everything is about the water access. You can swim in the cave, and if you’re comfortable, you can jump from above into the water and then continue swimming. There’s also a unique detail you’ll want to know: near the pebble beach, there’s a water spring. It’s not something you can appreciate from a distance, so build in a little time just to look around while you’re already there.

How to make the cave swim safer and more enjoyable

Rina’s Cave is for people who can handle open water conditions. This tour is not suitable for non-swimmers, and it is also not a good match for anyone prone to seasickness because the sailing stretches can feel long. If you’re a confident swimmer, wear your swimwear early, keep sunscreen ready, and bring a towel so you can dry off fast between swims.

Also, consider keeping your eyes open for the rocky pebble shoreline around the cave. Some people use that stretch as a practical way to move between water spots and for a quick break before getting back in.

Lunch Onboard: BBQ Flavor, Big Portions, Clear Options

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Lunch Onboard: BBQ Flavor, Big Portions, Clear Options
Lunch is served during the cave stop break-up and boat reboard phase, and it’s one of the best parts of the day because it turns “hungry and salty” into “full and happy” quickly. The menu includes a mix of sides and hot dishes, plus fruit to round things out.

What you can expect includes:

  • Greek salad, oven potatoes, rice with vegetables, pasta, and fresh bread
  • Hot mains like pork or chicken souvlaki (skewers)
  • Spetzofai (included as part of the onboard spread)
  • Fresh fruit, plus dessert at later points in the day based on how the sailing goes
  • A vegetarian menu option that keeps the sides and includes filling staples

Drinks and the wine note

Lunch includes free Coca-Cola, Sprite, orange juice, wine, and water, with the day’s meals handled onboard. Wine is part of the lunch setup, but don’t expect it to be the chilled, fancy kind you might buy in a bottle shop. The general idea is that you can relax with a glass, not that wine is the main event.

One practical tip: eat lightly before the tour if you can, because once the swimming starts and you’re back onboard, the portions are generous. People do describe it as a lot of food, and you’ll likely feel better if you don’t arrive already stuffed.

Ano Koufonisi: Cobbled Streets, Beach Time, and Real Freedom

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Ano Koufonisi: Cobbled Streets, Beach Time, and Real Freedom
After the cave and lunch, the tour moves toward the Koufonisia area. Weather permits a stop at Kato Koufonisi, an uninhabited island, and then you’ll return to spend about 3 hours on Ano Koufonisi.

That 3-hour window is a sweet spot. It gives you time to wander the village streets without turning your day into a rushed checklist. Ano Koufonisi is known for its compact, cobbled feel, and this is where you can slow down and choose your pace. You can stroll, stop for a snack, browse small shops, and then head to the nearby beaches when your legs and sun tolerance kick in.

Use the sea taxi if you want beach variety

A helpful feature here is flexibility. If you want to see more than one beach, you can take a low-cost sea taxi for a brief hop to other shoreline options. That makes a big difference if you love swimming and want variation, but you do not want to rely only on one spot for hours.

What you should not expect

This is not a history-heavy tour. There is no onboard guide delivering commentary in a structured way, and you should assume the day is focused on water time plus your own exploration. If you want background on Cycladic history, you’ll be happier if you do a little reading before you go or pair this with another guided walking tour on Naxos.

Kato Koufonisi: The Uninhabited Side of the Day

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Kato Koufonisi: The Uninhabited Side of the Day
Kato Koufonisi is scheduled as a stop when weather permits. Because it is uninhabited, the value is mostly sensory: open sea, quiet water access, and that “we’re here because the water is perfect” feeling.

In real terms, think of this as a short, scenic chance to enjoy the surrounding views and water-based fun rather than a long land exploration. Some days may shift depending on winds, and you should plan for the possibility that the route and timing can adjust. Your best mindset is to stay flexible and treat the itinerary as weather-aware.

The Sailing Time: Comfortable, Long, and Weather-Dependent

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - The Sailing Time: Comfortable, Long, and Weather-Dependent
This cruise is about 8.5 hours total, and that includes meaningful travel segments. Expect the return sail to be a longer one, with people describing the journey home as a slower stretch once you’ve already had fun in the sun.

Why this matters

If you’re comfortable on boats and you like reading, listening to music, or simply watching islands drift by, this part becomes the relaxing buffer between active moments. If you’re the type who feels tense on open water, plan around it.

This tour is not suitable if you get seasick easily. There’s no guarantee you can avoid rougher movement because sailing changes with wind. Bring your calm tools, like a book, water, and something to distract yourself during longer sailing stretches.

Comfort tips that actually help

  • Arrive early at the meeting point if you care about seating. Front sunbeds can be limited.
  • If you want shade, know there is shade on board but it may not be abundant.
  • Bring sunglasses and a hat, and keep sunscreen reachable. Sun hits hard once you’re out there.

Getting the Most From Your Day Trip (Without Overthinking It)

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Getting the Most From Your Day Trip (Without Overthinking It)
Here’s how I’d optimize your experience if you want the best day from this route.

Sunbed strategy

Front sunbeds feel like prime real estate, and people advise getting there early if you want them. Some of that is because the boat can fill on busier days, and once items and towels are placed, they tend to stay in position for the day. If you’re okay with shade or you’re happy on the upper deck, you still get plenty of comfort.

What to bring, based on what actually matters onboard

You’ll be outdoors, in and out of water, and sun exposure is a given. Bring:

  • Sunglasses and a sun hat
  • Swimwear and beachwear
  • A towel
  • Sunscreen
  • Personal medication

Also, pack for your own safety and comfort. Flip-flops can get slippery on wet surfaces, so wear something stable for moving around the boat. High-heeled shoes are not allowed, and unaccompanied minors are not permitted.

Snorkeling and water gear

Snorkel equipment is available for guests, and life jackets are on board as well. Sunbeds and loungers are included too. If you’re not sure how to use the snorkel gear, ask the crew when you board, since the setup is there for your use.

Who This Tour Fits Best, and Who Should Skip It

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Who This Tour Fits Best, and Who Should Skip It
This cruise suits you if:

  • You want a swim-focused day with a cave stop and free time in Ano Koufonisi
  • You like sailing scenery and a relaxing pace, not a lecture-style tour
  • You value included food and drinks rather than paying for meals and snacks separately
  • You can swim comfortably (the tour is not for non-swimmers)

You might skip it if:

  • You get seasick easily or you’re worried about long sailing stretches
  • You need wheelchair-friendly access, since it’s not suitable for wheelchair users
  • You’re after detailed guided history. There isn’t a guide onboard doing commentary, and the day runs on free exploration.

For families: the tour includes specific onboard amenities and is built for comfort and fun. It is also not allowed for unaccompanied minors, so plan for supervision.

Should You Book This Rina’s Cave and Koufonisia Cruise?

From Ag Anna: Rina's Cave and Ano and Kato Koufonisi Cruise - Should You Book This Rina’s Cave and Koufonisia Cruise?
If you’re picturing a day with big water moments, good food, and enough freedom to explore a beautiful island village at your own pace, this tour is a strong match. The best part is how the day is structured around water time, then rewarded with a real onboard lunch using local ingredients. For $94, you’re paying for a full, mostly-covered day: transport, meals, drinks at lunch, sunbeds, and snorkeling equipment.

My call is simple. Book it if Rina’s Cave is on your list and you want that sea-only, swim-first experience plus 3 hours in Ano Koufonisi. Skip it if you need history guidance, if you cannot swim, if seasickness is a risk, or if you prefer shorter days with less time on the water.

If you want, tell me your travel dates and group ages, and I’ll help you decide whether this specific timing is likely to fit your comfort level and priorities.

FAQ

What time does the cruise leave and return?

It leaves Agia Anna port at 09:45 and returns at approximately 19:00.

Where is the meeting point?

Meet at the taxi piazza, with a dock, at Agia Anna. Locate the sailing boat Mikros Kosmos II. Free transfer is provided from specific meeting points and time, so ask in advance.

How long do you spend at Rina’s Cave?

You get about 1.5 hours at Rina’s Cave.

What is included in lunch onboard?

Lunch includes Greek salad, oven potatoes, pasta, spetzofai, rice with vegetables, fresh bread, fruit, and pork or chicken skewers (souvlaki). Vegetarian options include the same sides and dishes, with vegetarian choices provided.

Are drinks included during lunch?

Yes. During lunch time, you get free Coca-Cola, Sprite, orange juice, wine, and water. Beer, extra soft drinks, cocktails, and snacks are not included and can be purchased on board.

Is there time to explore Ano Koufonisi?

Yes. Weather permitted, you visit Kato Koufonisi and then stop in Ano Koufonisi for about 3 hours of free time.

Do you get to swim or snorkel during the stops?

Yes. Swimming time is built into the stops, and snorkel equipment is available onboard.

Who should not book this tour?

It is not suitable for wheelchair users, non-swimmers, and people prone to seasickness.

What should I bring?

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

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