Crystal water and ancient stones in one day. This half-day cruise pairs Rhenia’s swim time with an optional visit to Delos UNESCO ruins, all with a onboard BBQ lunch and a laid-back vibe that never feels rushed.

I like the way the day gives you two very different kinds of fun: a proper sea stop where you can jump in and snorkel, plus a land stop at Delos where you can wander at your own pace. One thing to watch: the Delos entrance fee is extra (about €20), and Delos can be hot with limited shade.

Key Things to Know Before You Go

• Rhenia swim first: about 3 hours to swim, snorkel, and relax on an uninhabited island
• Optional Delos ruins: about 2 hours for a self-guided UNESCO visit, or you can stay on board
• BBQ lunch included: BBQ and fruit, with drinks handled onboard
• Crew energy matters here: expect music, singing, and a dance-party feel on the way back
• Bring basics for Delos heat: water and sunscreen really help on the ruins
• Sea can be choppy: if you get seasick, plan for it

The Big Idea: Two Islands, One Easy Mykonos Day

This is the kind of trip that makes sense if you only have a short window in Mykonos but still want the classic Greek contrast: white Cycladic islands by day, and history that feels almost unreal at Delos.

You sail from Mykonos to Rhenia first, which is the practical move. You get your swimming done early while the mood is fresh. Then you move on to Delos for ruins, where the main job is walking, looking, and reading the plaques.

Finding the Boat at the Old Port (and Not Stressing)

Meeting point is the Bus station at the Old Port of Mykonos. That’s clear on paper, but in real life the port area can feel like a maze, especially if you arrive late or are juggling other tickets.

I’d build in extra time to get your bearings. If you’re exchanging a voucher, be ready for a bit of hunting around for the right boat/crew and operator name. The provider is Golden Yachting & Sailing, and having that in your head helps if you need to ask.

Bring your passport or ID card, since that’s required. Also, this is a practical half-day: if you forget swim gear or sunscreen, you’ll feel it fast once you’re out at Rhenia and then exposed at Delos.

Rhenia Island Swim Time: Crystal Water, Rocky Edges, Real Water Shoes

Rhenia is the highlight if you care more about the sea than the sightseeing. You get roughly 3 hours there, and the water reputation matches what you’re hoping for: people describe it as some of the clearest they’ve ever seen.

Here’s what makes that swim time work:

• You can jump off the boat and swim in the open water.
• You can spend time snorkeling, though one report notes snorkeling wasn’t great for fish at one spot, so set expectations: this is mostly about clear water and a relaxing sea break.
• If you’re not a confident swimmer, the crew can help with flotation options. One tip that shows up: they may use a pool noodle to make floating easier.

There’s also a land-and-water moment at the beach area, and a couple of practical cautions come up:

• The spot near the boat can be rocky, so water shoes can make the transition easier.
• Some swim access involves stepping into the water near the boat, so it’s not always a gentle “wade right in” situation.

Finally, water temperature tends to be cool-but-bearable for most people once you’re in. If you’re sensitive, bring that in your decision-making and don’t plan to spend the whole 3 hours shivering.

Lunch on the Water: BBQ, Fruit, and the Drinks Setup

When you’re out there, you want food that feels like a real meal, not a sad snack. The onboard BBQ and fruit hit that note for most people, with reports of chicken and pork skewers, plus Greek salad, rice, and watermelon.

A few things to keep in mind:

• Lunch happens while you’re in the Rhenia area, so you’re eating in swim mode. That’s part of the fun.
• Drinks: the official includes BBQ/fruit and fuel/crew, but onboard you can expect a bar setup. Many comments mention free wine and plenty of soft drinks being part of the experience, with some describing it as generous or unlimited. If alcohol matters to you, take that into account and pace yourself.

This is also where the crew’s personality shows. Names that kept coming up in accounts include Mola, Mohamed, and Michael, and the vibe is friendly and upbeat. Even if you’re not dancing, you’ll feel the energy.

The Delos UNESCO Stop: 2 Hours That Go Fast in Summer

Delos is the reason people come. This trip gives you about 2 hours to explore UNESCO-listed ruins with a self-guided approach. That’s enough time to get the big impressions without turning the day into a marathon.

But Delos has one big reality check: the ruins can be very hot, and shade is limited. You’ll want to treat this stop like an outdoor walking tour with no mercy. Bring water and sunscreen, and plan to move with purpose.

Also note the practical rule of the day: you can’t swim at Delos. So if you’re thinking about staying in the water, Rhenia is your window. At Delos, the value is the walking—stopping at plaques, reading what’s there, and noticing how much the site covers.

If you like history, Delos rewards it even when you’re self-guided. People describe it as larger than they expected, with plenty to see. If you don’t want to over-plan, just pick a direction and let your feet do the discovering.

The Boat Ride Itself: Scenery, But Also Choppy-Water Reality

Between the islands, you’ll be on the water for sailing segments—about 45 minutes to Rhenia and about 30 minutes afterward toward Mykonos.

One practical warning: the ride can be choppy, and at least one account explicitly suggests bringing meds if you’re prone to motion sickness. If you’re sensitive, I’d treat this like any Greek island cruise: pick a spot on board where you can see the horizon, and consider your usual seasickness tricks.

That said, the scenery factor is real. The day is built around sea views and the contrast between empty Rhenia and the dense ruins on Delos. Even when the boat feels rough, you’re doing it for a reason.

The Return Trip Dance Party: Fun Bonus, Not the Main Event

The way back tends to be where the mood turns into something close to a party boat. Multiple descriptions mention music, singing, and a dance party atmosphere, with crew members encouraging people onboard.

This matters because it changes the tone of your day. You’re leaving behind hot stone and sea air, and you get a fun reset while heading back to Mykonos. If you prefer quiet, you don’t have to join in—but you’ll be surrounded by the energy.

If you want a calm day, you can always time your pacing: stay seated during the loudest stretches and stand up for fresh air when it’s quieter.

Price and Value: Is $101 a Good Deal for Delos and Rhenia?

At about $101 per person for a 6.5-hour experience, the value comes from what’s included versus what you’d otherwise pay or organize yourself.

Included:

• Boat trip to two islands
• BBQ and fruit
• Fuel and crew

Not included:

• Delos entrance fee (about €20)
• Snorkeling equipment (can be purchased onboard)
• Hotel pickup/drop-off

What that means for you: even after you add the Delos entry fee, you’re still getting a bundled day that covers transportation, a scheduled sea stop with substantial swim time, and a guided-by-schedule Delos visit without needing to arrange a private boat.

Also, this trip is good value because it doesn’t force you into one style. You can stay on board for extra water time if you’d rather relax than walk at Delos. That flexibility is part of the pricing logic.

Who This Works Best For (and Who Might Want Another Option)

This boat trip is a strong match if you want:

• a swim-heavy day plus one major history stop
• a self-guided Delos visit where you can set your own pace
• a fun crew vibe with music and people onboard

It may feel like the wrong fit if:

• you’re sensitive to rough water and haven’t handled motion sickness before
• you need lots of shade and indoor time (Delos is outdoors)
• you want snorkeling focused on reefs and heavy marine life (Rhenia is about clarity and swimming, and snorkeling quality can vary by spot)

For couples, friends, and solo travelers, it’s also a decent social format. You’re not stuck in silence, and the stops give you natural conversation starters—where you swam, what you saw on Delos, what you liked about the food.

Should You Book This Delos & Rhenia Half-Day Trip?

Yes, if you want the best bargain mix of Mykonos sea time and Delos UNESCO ruins without spending extra days planning. The biggest reasons to book are simple: Rhenia’s swimming window is long enough to actually enjoy it, and Delos is timed so you can see a lot without burning the whole day.

If you do book, go prepared for two practical realities: Delos heat and possible choppy water. Bring water and sunscreen, consider water shoes for the rocky areas, and pack seasickness solutions if you need them.

If that sounds like your kind of day, this is an easy pick.

FAQ

What does the trip include?

The trip includes the boat trip to Delos and Rhenia, BBQ and fruit, and fuel/crew. Snorkeling equipment is not included, but you can purchase it onboard.

Do I need to pay an entrance fee for Delos?

Yes. The entrance fee to Delos is not included and is listed as approximately €20.

How long does the trip last?

The total duration is about 6.5 hours.

Where do I meet the boat?

You meet at the Bus station at the Old Port of Mykonos.

Can I stay on the boat instead of visiting Delos?

Yes. When you arrive at Delos, you can stay on board rather than disembarking for the self-guided tour.

Is snorkeling equipment provided?

No. Snorkeling equipment is not included, but you can purchase it on board.

What should I bring?

Bring your passport or ID card. Also plan for sun and water time with sunscreen and water since Delos can be hot and you’ll be exposed outdoors.

Is hotel pickup included?

No. Hotel pickup and drop-off are not included.

Can I cancel for a refund?

Yes. The activity offers free cancellation up to 24 hours in advance for a full refund.

Is there pay-later booking available?

Yes. It offers reserve now & pay later, so you can book and pay nothing today.