Two islands, one great day on the sea. I like how this trip pairs Delos UNESCO ruins with Rhenia swimming without wasting hours on transfers.

I especially love the Rhenia stop: the water looks unreal in every shade of blue-green, and you get real time to swim, snorkel, and chill. I also like the Delos portion because it’s self-guided but structured—2 hours is enough to see the big highlights on your own pace, especially if you start with the upper views.

One possible drawback: the boat ride can feel choppy, and Rhenia’s shoreline involves stepping into the water from the boat area. If you’re prone to seasickness or you’re not a confident swimmer, plan accordingly.

Key Things You’ll Notice on This Delos & Rhenia Boat Trip

• Jump-in swimming at Rhenia with long, unhurried sea time and beach access options
• Self-guided time at Delos (UNESCO) that lets you move at your own speed
• BBQ lunch onboard plus fruit, with the food happening right after your first swim
• A party vibe on the return (music, singing, and dancing on the boat for many departures)
• Friendly, energetic crew (names that show up often include Mola, Mohamed, Michael, and Poala)
• Delos entrance fee is extra, so budget roughly €20 for that part

How This 6.5-Hour Boat Day Works From Start to Finish

This half-day trip is built like a simple recipe: boat out, swim and eat, ruins time, then sail back with good energy. Expect about 6.5 hours total, with the slowest part being the time it takes to move between islands by sea.

The day starts at the Old Port of Mykonos bus station. From there, you’ll head to Rhenia first, which is a great move because it lets you cool off early while you still have the most stamina for sightseeing later.

You’re also not locked into one kind of activity. You can plan for the ruins at Delos, or you can keep one hand on the “beach mode” dial and stay onboard for more sea time. That flexibility is a big reason this trip lands well for mixed groups.

Rhenia Island Swimming: Crystal Water and the Real-World Beach Entry

Rhenia is the star for the water. You get around 3 hours at Rhenia for swimming and a BBQ onboard break. The sea conditions are part of why people rave about this stop: the water is described as extremely clear, with that glassy look that turns any jump-off moment into a photo-worthy memory.

A few practical notes so you go in prepared:

• Your entry may be easier if you’re comfortable stepping in from the boat area. One detail that matters: the boat can stop off the beach and you enter the water close by rather than walking down a smooth gangway.
• The beach can be rocky, so water shoes are a smart idea if you have them.
• If you’re not a strong swimmer, don’t assume you can just wander out to the shoreline. You may need to use flotation aids that are commonly available onboard, like pool noodles, and stay in areas you can manage comfortably.

There’s also a good rhythm to how the day is paced. You’ll swim first, then eat, then later you’ll decide what you want most: more snorkeling and sea time, or time on Delos. That sequencing helps the trip feel balanced instead of exhausting.

If the sea is choppy that day, the boat ride can feel like a roller coaster. Bring motion-sickness medication if you’ve ever needed it on boats. And if you’re feeling fine, enjoy the ride anyway—Rhenia’s water is the payoff that makes the bouncy parts worth it.

Delos UNESCO Ruins: Self-Guided, Hot, and Worth Your Two Hours

Delos is where the trip flips from beach day to time-travel. You’ll have about 2 hours on Delos for a self-guided visit, after a short sailing leg from Rhenia.

Two hours sounds tight until you realize Delos is spread out. In practice, you can pick up the major scenes and walk to viewpoints without needing to race. You’ll see enough to understand why people call Delos so important, but you won’t be trapped in an hour-by-hour tour structure.

Here’s what to keep in mind so you don’t suffer:

• Delos can be brutally hot in summer, with limited shade. Bring sunscreen and plan to drink water.
• You’re exploring ruins with lots of walking on uneven stone paths. Wear shoes that handle heat and grip.
• Since there’s no guide included, you’ll get more from it if you bring your curiosity. If you like reading plaques and maps, the site is designed for that style of wandering.

If you want to maximize your time, I’d aim to get your bearings fast after disembarking. Start with the higher views first, then work your way through the main areas. That way, if the sun ramps up, you already got the best angle shots.

One thing to be aware: occasionally, Delos may be affected by conditions like heat. In that scenario, you could end up with less time on land and more time back in the water at Rhenia. It’s not something you should count on, but it’s a reasonable possibility on hot days.

Onboard Lunch and Drinks: BBQ Right After the Swim

The BBQ lunch is one of the practical wins on this trip. You’ll eat after your first Rhenia swimming time, so you’re not stuck grazing on land with sand in your hair.

The lunch includes BBQ and fruit. Guests also consistently describe the food as good, and the timing works well: you’re warmed up from the sea and ready for a meal without feeling heavy.

Drinks are also part of the atmosphere. People note complimentary wine and soft drinks onboard, and the return journey often feels like a moving celebration. You’ll still want to pace yourself with water—especially because Delos can be hot and sunscreen can’t replace hydration.

If you’re sensitive to seasonings, keep an open mind: some rice dishes have been described as under-seasoned. The fix is simple—there’s generally salt and pepper available, or you can adjust with what you’re served. In other words, don’t let one picky detail scare you off if your main goal is ruins plus Rhenia water.

The Boat Ride Atmosphere: Friendly Crew and a Dance-Party Return

This is not a quiet, contemplative ferry. The boat experience leans social.

The crew style tends to be upbeat and hands-on. Names that come up often include Mola and Mohamed, and also Michael and Poala. You’ll see the same pattern across descriptions: clear guidance, check-ins to make sure you’re okay, and plenty of encouragement to join in if you want.

On many departures, the return trip turns into a music-and-dancing session. People describe singing and dancing on the way back to Mykonos, and it adds a fun last chapter if you like group energy. Even if you don’t dance, it usually makes the whole day feel lighter.

One practical heads-up: the boat can be sturdy, but sea conditions still matter. If your stomach doesn’t like waves, take preventative steps. The upside is that you’ll spend more of your energy enjoying swimming and ruins instead of worrying about whether you can handle the ride.

Price and Value: Why About $101 Makes Sense for This Day Plan

At $101 per person for a half-day, you’re paying for three things at once: sea transport, Delos time on a structured schedule, and onboard food. That’s a real value mix compared to piecing everything together yourself.

What’s included: boat trip, BBQ and fruit, fuel, and the crew. What’s not included: Delos entrance fee (about €20), plus Delos doesn’t come with a guide.

When you price it out, the big question is whether you’ll actually use all parts of the day. If you’re the type who will swim at Rhenia and walk Delos ruins, the package feels efficient. If you only care about one side—just beaches, or just ruins—you might consider a more focused alternative.

For most people, though, this works because it matches Mykonos vacation reality: you want one memorable sea day without committing to an all-day marathon. And you get to choose your balance between swimming and ruins, rather than being forced into one mode.

Who This Trip Fits Best (and Who Should Rethink It)

This boat trip fits best if you want:

• a strong first-time Mykonos experience that’s more than just walking around town
• a mix of history and sea time in one day
• a social cruise vibe with a crew that keeps energy up

You might rethink it if:

• you’re highly prone to seasickness and don’t take precautions
• you’re not comfortable with water entry from the boat area at Rhenia
• you need a guided, lecture-style explanation at Delos (since your Delos time is self-guided)

It’s also a good fit for couples and small groups because it balances freedom (your own pace on Delos) with structure (the schedule keeps everything moving). Families can work well too, as long as everyone can handle the swim conditions and sun.

Quick Practical Tips Before You Go

Bring a passport or ID card. Also pack for sun and water because Delos and Rhenia both demand it.

My go-to checklist for this specific day:

• swimwear and a towel you don’t mind getting salty
• sunscreen and a hat (Delos heat is no joke)
• water shoes if you expect rocky entry at Rhenia
• motion-sickness meds if you’ve had issues on boats before
• basic sea-day patience. The ride and timing are part of the experience, not a flaw

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

I’d book this if your ideal day in the Cyclades includes UNESCO ruins plus real swimming time, with lunch handled for you. The schedule is tight but not rushed, and the payoff is strong: Rhenia’s water does the heavy lifting for the senses, while Delos gives you the “wait, this is where Greek history gets real” feeling.

I’d skip it if you want a quiet, fully guided museum-style tour at Delos, or if you’re not comfortable with boat conditions and water entry at Rhenia. In that case, the day may feel more stressful than fun.

If you’re in the middle—curious about Delos, happy to swim at Rhenia, and okay with a lively boat atmosphere—this is an excellent value way to see two islands that feel totally different in the same half-day.

FAQ

How long is the Delos & Rhenia half-day boat trip?

The duration is about 6.5 hours.

Where do I meet for the trip?

Meet at the bus station at the Old Port of Mykonos.

Is the Delos entrance fee included?

No. The Delos entrance fee is not included and is approximately €20.

Is there a guide at Delos?

No guide is included. Delos sightseeing is self-guided for about 2 hours.

How much time do we spend at Rhenia?

You’ll have about 3 hours for swimming and BBQ time at Rhenia.

Can I swim and snorkel at Rhenia?

Yes. You can swim, and snorkeling is also part of the stop.

Is snorkeling equipment included?

No. Snorkeling equipment can be purchased on board.

What’s included in the price?

The price includes the boat trip, BBQ and fruit, fuel, and the crew.

What should I bring?

Bring a passport or ID card. For the activities, you’ll also want swimwear and sun protection.

Is free cancellation available?

Yes. You can cancel up to 24 hours in advance for a full refund.