Mykonos cruises to Delos and Rhenia can feel like a day trip with superpowers. You get a UNESCO stop at Ancient Delos, then you spend real time in calm, uncrowded swimming water at uninhabited Rhenia. I like this mix because you’re not choosing between history and beaches.

What I like most is how flexible the day feels: you can stay aboard for a swim during the Delos part, or step off for a 2-hour exploration. I also really value the basics that make the day easier—lunch on board, drinks, and a cruise escort included in the price. One thing to keep in mind is that timing can shift depending on weather and dock plans, so you’ll want to go in with a little flexibility around how much time you get at Delos and whether every stop runs exactly as described.

Quick hits before you sail

• UNESCO Ancient Delos stop with a 2-hour option that lets you pace yourself on site
• Rhenia’s sandy coves and clear water are the point, with time to swim and snorkel
• Lunch and drinks included so you’re not juggling money mid-cruise
• English and Greek live tour guide to help you understand what you’re seeing
• Passport info must be sent at least 12 hours early for port permission
• Weather can affect timing, so build the right expectations

From New Port Mykonos to Cycladic Sisters: the ride setup that matters

This cruise runs from the New Port of Mykonos, right opposite the Olia Hotel. That matters because Mykonos can be chaotic on foot, and having a clear opposite-landmark meeting point helps you avoid the last-minute scramble.

The cruise duration is about 6.5 hours, and the rhythm is simple: you leave Mykonos, reach Ancient Delos, then continue on to Rhenia before heading back to Mykonos in the evening. For many people, that structure is exactly what you want. It’s long enough to feel like an outing, but not so long that you’re exhausted when you return.

Ancient Delos: UNESCO ruins, optional on-land time, and a reality check on timing

Your main cultural anchor is Ancient Delos, a UNESCO world heritage landmark. The idea is that you either stay on board for onboard relaxation and swimming during the Delos segment, or you disembark for an on-land 2-hour tour.

Here’s the useful mindset: Delos is one of those places where timing affects your enjoyment. If your time is closer to the short end, you’ll want to focus on the highest-impact zones first. If you get closer to the full window, you can linger and get more context from your guide.

In one experience, the crew waited patiently as early weather turned colder and rainy, then allowed the group to explore once conditions improved. That kind of calm handling is a real plus, especially when you’re stepping off a boat into wind and changing skies. Still, there’s also a caution from other days: if your schedule runs tight, you might get less than expected at Delos. So I recommend you plan for the Delos stop as the highlight, but don’t assume every day will feel perfectly identical.

Swim-and-snorkel culture at Delos: when staying on board works

This cruise gives you a choice, and I like that. If you’re not trying to sprint through ruins, staying aboard during part of the Delos time can be a smart move. You can enjoy the blue-green waters around the area while the tour group is on land.

This option is also handy if you’re traveling with kids, if you’re prone to heat or cold on foot, or if you simply want a lower-stress way to experience the day. Just know that you’ll trade off some depth of on-land time for more water time.

If you’re sensitive to weather swings, remember you might be starting your day with brisk conditions. One reviewer praised the crew for being patient with rain early on, which suggests the team pays attention to when it’s safe and comfortable to explore.

Rhenia Island beaches: where the day turns into real vacation time

If Delos is your brain, Rhenia is your break. Rhenia is uninhabited, and the cruise heads straight toward mesmerizing beaches and crystal-clear waters where you can swim and snorkel. This is the stop built for letting go: sandy coves, clear water, and fewer crowds than the main Mykonos scene.

The best reason to care is simple. On Rhenia, your enjoyment isn’t dependent on museum timing or a long walk. It’s dependent on water conditions and your willingness to get in. If you enjoy floating, swimming, and short snorkel sessions, you’ll likely feel like your money was spent where it matters.

Rhenia is also a great place to pace yourself. You can spend more time in the shallows, drift along the coastline, or just stay in the water longer than you would on a hectic shore schedule. The cruise advertises a memorable 2-hour tour option here as well, so you’re not limited to “one quick stop and back.”

One important consideration: the cruise description clearly includes Rhenia, but not every operational day may run the stops exactly as marketed. On a small number of experiences, people reported missing Rhenia due to a change in plan. So if Rhenia is your top reason for booking, it’s worth going in ready to ask how the day looks on your sailing day.

The Mykonos-to-Delos-to-Rhenia timing: why 6.5 hours feels both short and perfect

At 6.5 hours, you’re getting a “concentrated Cyclades” day. That can feel perfect if you’re visiting Mykonos for the first time and want a taste of the islands beyond the town. It can feel short if you’re a serious site-hopper who wants many hours at UNESCO ruins.

This is why the optional choices matter. The day is designed to give you a balance: history on Delos if you want it, water time either way, then Rhenia as the payoff. If you prioritize ruins, focus your energy on making the most of your on-land Delos window. If you prioritize the beach, you can treat Delos as the boat leg with a little exploring rather than a full-day commitment.

Food and drinks on board: included, practical, and worth noticing

One of the easiest ways a cruise can become stressful is if meals are awkward or overpriced. Here, lunch on board and drinks are included, which keeps you from hunting for food between swim breaks and shore steps.

In a review from the US, service and food were specifically praised, and the day was described as easygoing and relaxing. That fits the overall design: you’re not stuck in a rigid script all day. You have downtime on the water, and you get fed.

If you’re the kind of traveler who likes to arrive hungry and stop thinking about snacks for the rest of the day, this is a practical win.

Price and value: is $117 per person a smart deal?

At $117 per person, the price isn’t just “cheap boat ride” territory. It’s paying for a full half-day experience that includes cruise escort, lunch, drinks, and local taxes.

What’s not included is also important for judging value:

• Delos entrance fees are not included
• There’s no guaranteed English speaking guide/escort for Ancient Delos included as part of the cost (your live tour guide covers the tour, but Delos fees and specific guidance requirements may be separate)
• Land transfers aren’t included (they’re listed separately at 8€ per person per way)

So the value calculation depends on what you want most:

• If you mainly want water time at Rhenia, plus a UNESCO stop you can choose to experience for 2 hours, you’re likely getting good value.
• If you want deep, guided archaeology time inside Delos for hours, you may feel you need more support than what’s included.

My rule: treat this as a “two-location day with a beach payoff.” If that’s your goal, the price makes sense. If you want a full-on guided museum marathon, you might prefer a different format.

Who this cruise suits best (and who should pick something else)

This works especially well for:

• First-time Mykonos visitors who want more than town streets
• People who like swimming and snorkel time as part of sightseeing
• Families and groups who prefer a relaxed boat schedule rather than bus transfers
• Travelers who want a half-day escape without planning every minute

You might think twice if:

• You’re the type who needs guaranteed exact time on Delos and Rhenia every day, no exceptions
• You’re only interested in one stop and would be unhappy if the day shifts because of weather or docking
• You’re expecting a long, fully guided experience inside UNESCO ruins

Practical tips so you get the most out of your day

Bring your passport or ID card. The port rules require passport information to be sent at least 12 hours before the cruise so the crew can include you on the passenger list. That’s mandatory by port authorities for permission to embark.

Also, plan for changing conditions. Early in the day, you can run into cooler and rainy weather around the sea, and the crew’s job is to decide when it’s comfortable to proceed. If you pack smart, you’ll stay comfortable even when the sky has other ideas.

Finally, decide what you want to maximize: ruins time or water time. This cruise is built so you can shift your priorities during the day, but your choices affect what you experience most.

Should you book this cruise to Rhenia and Delos?

I’d book it if you want a straightforward, enjoyable day that blends UNESCO Delos with real beach time at Rhenia—with lunch and drinks handled. The included food and escort, plus the option to either explore Delos or stay on board, makes it easier to match your mood.

I’d hesitate if Rhenia is your only reason for booking and you’d feel disappointed if the day changes. There are signals that dock and timing decisions can alter the exact flow, and a small number of experiences mention missing Rhenia or having a shorter Delos window.

If you’re flexible and you like the idea of getting in the water, this is a strong value way to experience the Cyclades beyond Mykonos town.

FAQ

How long is the cruise?

The duration is listed as 6.5 hours.

How much does it cost?

The price is $117 per person.

Where do I meet the tour?

You meet at the New Port of Mykonos, located opposite the Olia Hotel.

Is lunch included?

Yes. Lunch on board is included.

Are drinks included?

Yes. Drinks and beverages are included.

Do I need to pay for Delos entrance fees?

Yes. Delos entrance fees are not included.

Do I need a guide on Ancient Delos?

The tour description notes that English (or Italian, French, Spanish, Portuguese) speaking guide or escort for Ancient Delos is not included.

Is there a live guide?

Yes. There is a live tour guide with English and Greek.

What documents do I need?

Bring a passport or ID card.

What should I know about sending passport information?

Passport details need to be sent at least 12 hours before the cruise for port authority permission.