Saronic Gulf from a private yacht feels unreal. This 9-hour private cruise trades crowded ferries for calm bays, snorkel-ready water, and skipper-led stop choices around Agistri and Aegina. You also get onboard time that feels more like a day at sea than a rushed checklist.

I love the private setup (your group only, up to 11), and I also love the hands-on water time with sea scooters, snorkeling gear, and swimming stops picked for comfort. One thing to consider: the listed price is for your group, but there’s an extra €450 fuel surcharge per booking, plus you’ll want good weather to make the day run smoothly.

Key things to know before you go

• Private group time (up to 11): you control the vibe, not the schedule of a public boat.
• Sea scooters + snorkeling gear: the included gear helps you go from sunbathing to exploring quickly.
• Sheltered swim bays: the route includes wind-protected anchorages that make swimming easier.
• Real island variety in one day: islets, an Agistri bay, a fishing village lunch stop, and Moni’s nature-only beaches.
• Skipper insights without the lecture: you get guidance, then time to relax and do your own thing.
• WiFi onboard: handy for maps, photos, and staying connected while still unplugged from crowds.

Private boat day to Angistri, Aegina and Moni: what it feels like

This day trip is designed for people who want the Saronic Gulf with breathing room. Instead of lining up, you board a modern private boat and spend the day at anchor—swimming, snorkeling, and moving between shore scenes that you’d never see from a standard ferry route.

The best part is the pace. You’re not trying to “beat” a route. You can hike a bit, sit with a drink, or just float while the crew handles the practical stuff like gear and drinks. It feels like a small vacation inside a single day.

And yes, the vibe is very “do it your way.” The stop choices give you options: short swims, longer hangs, and even time to walk around if the mood hits.

Getting to the boat: Agios Kosmas Marina and your flexible start

Your meeting point is Agios Kosmas Marina (Leof. Poseidonos 18, Elliniko 167 77, Greece). The start time is listed as 10:00 am, and you return to the same place at the end. The trip is designed to run about 9 hours, but it has to be finished by 7:00 pm, even if you choose a different start.

That flexibility matters if your day in Athens is already packed. If you’re coordinating with ferries, dining reservations, or a late morning, being able to adjust the start (as long as you’re done by 7:00) can make planning much easier.

One practical note: this tour is private, so you’re not sharing space with strangers. That also means showing up on time is your responsibility. But once you’re onboard, the crew takes over.

Stop 1: Aponisos/Dorousa islet and the Atlantis shipwreck swim

Your first anchoring stop is the islet of Dorousa (also described as belonging to the Aponisos area, with an “Atlantis shipwreck” people want to explore). It sits just southwest of Agistri, close enough that the water still feels calm and connected to the main islands.

You’ll have about 2 hours 15 minutes here, and the key value is what this stop represents: a quiet, untouched feeling. There are no “town” distractions, just open water and the kind of swim you do when you want a break from beaches with crowds.

The shipwreck is the hook, but the real win is the setting. This is the part of the day where you can settle in, get in the water early, and start building that slower rhythm. Since the stop duration is long enough, you can do one swim-and-snorkel session or two shorter dips without feeling rushed.

Potential drawback: if conditions are choppy, early anchor swims can feel less comfortable. The good news is that the overall itinerary is built around swim-friendly anchorages later too, so you’re not stuck with one rough moment.

Stop 2: Agistri bay time in Megali Bali (Limenaria area)

Next you anchor in one of Agistri’s top bays: Megali Bali Beach, in the Limenaria area. This stop is about 1 hour 45 minutes, and the big reason it’s on the route is protection from wind—so the water stays more pleasant for swimming.

This is one of those places where you can tell the crew picked the route for comfort, not just for a view. With rugged cliffs and dense greenery around the bay, you get that “how do you even reach this” feeling, but without needing to do any hard hike first.

What I’d do here: keep it simple. Do a solid swim, check out the snorkeling equipment if you’re using it, and then spend the rest of the time relaxing aboard while the crew gets everything ready for the next leg.

Small consideration: the stop is shorter than the others, so if you’re someone who likes long, slow beach time, you might want to prioritize swimming early in this window.

Stop 3: Perdika fishing village for Cycladic views and seafood lunch

After the open-water stops, the itinerary switches gears to Perdika, a small fishing village. It’s known for traditional Cycladic architecture and for being built on a hill, which gives you wide views over the blue waters below.

You get about 2 hours 30 minutes here, and this stop is the lunch payoff. The plan is built around easy dining at seafood restaurants in the village. If you’ve ever been on a boat day where food feels like an afterthought, this is different: Perdika is the kind of place where you can actually enjoy lunch as an experience, not just fuel.

If you want to stretch your legs, this is also a nice moment to wander at a gentle pace. Hilltop villages are perfect for short exploration because you don’t need long distances—just enough time to look around and take in the sea views.

What can be a downside: lunch choices depend on what’s open that day, and you might find it’s best to treat this as a plan-ahead moment. If you’re picky about timing (or you have kids with specific hunger schedules), it helps to let the crew know your preferences during the transition from the boat.

Stop 4: Moni Island beach next to Aegina for wildlife and snorkeling calm

In the afternoon you go to Moni, a small island next to Aegina. The standout detail here is that Moni has no permanent residents and no buildings. It’s basically nature-only shoreline: clear water, unspoiled beaches, and a sense of space.

You’ll have about 2 hours 30 minutes at this stop, which is a good chunk of time for the two activities most people come for: swimming and snorkeling. Since snorkeling equipment is included, Moni is the best place to use it if you want to focus on water exploration rather than just floating.

Moni is also where wildlife watchers can have their moment. You might see deer, Kri-Kri goats, squirrels, peacocks, and falcons. You shouldn’t expect a zoo-style guarantee, but the setting makes sightings possible in a way that most island beaches don’t.

A good way to use this time is to split it:

• One longer swim/snorkel session early, when you feel fresh
• Then a slower unwind with a drink as the sun shifts

This stop is often where boat days start feeling like real island time. When you step into water that’s calm and clear, you stop thinking about transportation and start thinking about the day itself.

What’s included onboard: sea scooters, snorkeling gear, drinks, and WiFi

The onboard setup is a major reason this works well as a private day. You’re not just cruising—you’re also equipped.

Included items:

• Skipper & crew
• Water toys
• Sea scooters
• Alcoholic beverages and soft drinks (plus bottled water)
• Snacks
• Snorkelling equipment
• WiFi on board

A few practical implications:

• Sea scooters are a huge confidence booster for people who want to explore a bit farther without doing “full effort” swimming.
• Snorkeling gear included means you don’t have to rent or scramble for last-minute equipment in Athens.
• Drinks and snacks reduce the temptation to spend extra money ashore. You can keep the whole day moving without stopping for every little need.

Based on what I’ve seen from operators who run trips like this well, the “small comfort” details matter too: clean spaces, good towels, and a crew that communicates clearly. The service style here is consistently described as professional and friendly, with captains who plan and then give you room.

Also, WiFi on board sounds minor until you need it: directions in advance, sharing photos immediately, or dealing with a work message without losing the day.

Price and logistics: what you’re actually paying for

The price is listed as $1,806.17 per group (up to 11 people) for about 9 hours. That’s the headline. The real value question is how it compares to what you’d pay for a public day trip plus add-ons plus taxis plus multiple food stops.

If you fill the boat (near the 11-person limit), the per-person cost can feel reasonable for Athens-area sailing—especially because snorkeling equipment, sea scooters, and drinks/snacks are included. If your group is small, you’ll feel the cost more, because you’re still paying for the full private charter.

One key add-on: Fuel surcharge €450 per booking is not included. It’s not unusual for fuel to be extra in private charters, but you should plan for it so the final bill doesn’t surprise you.

There’s another factor: since this is a private tour, you’re paying for control. You’re not just buying a route. You’re buying the ability to choose your pace, your swim times, and your comfort level.

A note on demand: this kind of private sailing gets booked about 75 days in advance on average, so if you’re aiming for a specific week, start planning earlier than you think you need.

How to tailor your day between swimming, hiking, and eating

This itinerary gives you anchor time at multiple water moods: shipwreck curiosity, sheltered bay swimming, village lunch energy, then a nature-focused island beach. But the crew is positioned to help you tailor that flow.

Here are smart ways to steer the day without micromanaging:

• If you’re big on water time, spend more of your Agistri and Moni windows swimming first, then relax on board for the rest.
• If you’re more “pictures and walking,” treat Perdika as your main stroll stop and keep swims shorter elsewhere.
• If you want a light hike, Moni’s nature-only setting is the kind of place where a short walk can feel rewarding without needing a long trek.

Also, ask the skipper about wind and water conditions before you commit to snorkeling. Even when stops are planned for comfort, real weather changes everything. A quick check helps you pick the right moments to gear up.

Bring the usual boat-day basics: sunscreen, a hat, and swimwear you feel comfortable reusing across multiple dips. A dry layer for later in the day can also help if you cool down after swimming.

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

This is a great fit if you want:

• A private day for families, couples, or small groups
• Lots of swimming and snorkeling time with included gear
• A mix of island nature and a real lunch stop in a village
• A crew that plans stops and then lets you enjoy the day on your own rhythm

It might be less ideal if you:

• Hate boat days in general (standing at anchor all day isn’t for everyone)
• Need a very set, fixed timeline where you can’t adjust your pace
• Are traveling during a period when weather may be unreliable (this experience does require good weather)

If you’re flexible, though, this itinerary is built to feel special without feeling overly complicated.

Should you book this private boat day-trip to Angistri, Aegina and Moni?

I’d book it if your ideal day includes clear water, included snorkel gear, and real downtime between island stops. The combination of sheltered swimming, a village lunch at Perdika, and a nature-only beach day at Moni makes this more than a simple “go see islands” outing.

The decision mostly comes down to your group size and weather timing. If you can split the group cost among several people and you’re traveling during a period with good conditions, this is strong value for a private day on the Saronic Gulf. If you’re coming with a smaller group and you’re watching your budget tightly, factor in the €450 fuel surcharge when you compare it to public options.

FAQ

How many people is this private boat day-trip for?

It’s a private tour for your group, with pricing set for a group of up to 11 people.

Where do we meet, and what time does the tour start?

The meeting point is Agios Kosmas Marina (Leof. Poseidonos 18, Elliniko 167 77, Greece). The start time is 10:00 am, and the trip ends back at the meeting point. It must be finished by 7:00 pm.

What stops are included during the day?

You’ll visit Aponisos/Dorousa (with time near the Atlantis shipwreck), Agistri (Megali Bali in the Limenaria area), Perdika (for lunch), and Moni Island beach near Aegina.

What’s included on board?

The tour includes skipper and crew, water toys, sea scooters, snorkeling equipment, alcoholic beverages and soda/pop, bottled water, and snacks. WiFi on board is also included.

Is the fuel included in the price?

No. There is a fuel surcharge of €450 per booking that is not included in the listed price.

What’s the cancellation policy if weather is bad?

You can cancel for a full refund if you cancel up to 24 hours before the start time. If the experience is canceled due to poor weather, you’ll be offered a different date or a full refund.