9 Knots vs 16 Knots: Will Your Yacht Reach the Islands You Want?

Tell us where you want to go, or just describe the week you have in mind, and finding the yacht that can actually do it is our job. You do not need to work out distances or check anyone’s cruising speed. That is the part we handle.

It matters because of how we plan a Greek week. We aim for 2 to 3 hours of cruising a day at most, and plenty of days are a 1 hour hop. You came for the islands, not for the transit, so the question is never how far a yacht can go. It is how much of Greece sits inside a short, pleasant morning from wherever you wake up. A faster yacht simply puts more of the map inside that window.

And if your dream route does not fit the yacht you like, the trip is not off. We change the yacht, the start point, the direction, or one stop, and you still get the week you wanted.

Quick answer

• We plan 2 to 3 hours of cruising a day at most, and often just 1. In that window a 9 knot yacht covers roughly 20 to 27 nautical miles, and a 15 knot yacht roughly 30 to 45.
• The Saronic Gulf works on almost any yacht, and the hops between islands are short. If you have your heart set on a catamaran, this is usually where we send you.
• Santorini is the furthest Cycladic island from Athens, roughly 130 nautical miles, and the yacht cannot go into port there. The northern and inner Cyclades are far easier to reach.
• The speed on a spec sheet is a best case in flat water. In summer wind your captain will go slower to keep the ride comfortable, so we plan with a little less.
• Tell us the week you want and we will find the yacht that fits it, or tell you honestly which single change makes it work.

Turn cruising speed into a day’s range

A spec sheet gives you knots. What you need is how far the yacht moves in the time you are actually willing to be underway, and that number is smaller than most people assume.

We plan 2 to 3 hours of cruising a day as the maximum, and we are happy when a day is a 1 hour hop. That is not us being cautious. It is what makes a week feel like a holiday: you swim in the morning, move while everyone is having coffee, and are anchored somewhere new in time for lunch. Long days underway are where charters go wrong. Children get bored, someone gets restless, and if the weather is grey you have spent your afternoon looking at the sea instead of swimming in it.

So the honest arithmetic is this. In a 2 to 3 hour window, a 9 knot yacht covers roughly 20 to 27 nautical miles. A 12 knot yacht covers 24 to 36. A 15 knot yacht covers 30 to 45. Across a week that difference decides which islands are realistically on your route, without anyone having to sit through a long passage to get there.

There is one exception we do use. If a route genuinely needs a long leg, the crew run it overnight while you are asleep, and you wake up somewhere new with the whole day ahead of you. That is the only time we would put 6 hours on the water.

What each speed band opens up

At around 9 knots, the Saronic Gulf is comfortable and the inner Cyclades work well once you are out there, because the hops between Syros, Mykonos and Paros are genuinely short. The leg that needs thought is the first one, the crossing out of the Athens area to Kea, which eats most of a morning at that speed. Starting from Lavrio instead, or running that crossing overnight, solves it.

Around 12 knots, the standard Cyclades loop stops being a stretch. You can add Naxos or Ios without giving up a swim stop to do it. At 14 to 16 knots, the outer islands come into range on normal daylight legs and Santorini becomes a planning decision rather than a logistics problem. Above 20 knots, distance stops being the constraint, and weather becomes the only thing that moves your route. For the leg by leg travel times behind these bands, see our guide on how far you can go on a one week Cyclades charter.

What each band looks like in our Greek fleet

These are real yachts on our Greek list, not illustrations. Cruising speed is printed in the specs on every yacht page on this site, so you can check any shortlist yourself: start with the motor yachts or the catamarans.

CRAZY HORSE, a Lagoon Seventy 8 power catamaran in our Greek fleet, cruising at 12.5 knots.

The captain of CRAZY HORSE, the power catamaran in the video above, puts the run out of Athens into the Saronic islands at about 2 hours, against the 5 or 6 hours a sailing yacht needs for the same water. That is the practical shape of the trade: a faster hull hands you back the morning, and on a short route you may not need it.

Athens to Santorini: roughly 130 nautical miles each way

Santorini is the furthest of the Cyclades from Athens, roughly 130 nautical miles away, and that single fact is why it needs planning while the rest of the island group does not. The northern and inner Cyclades, Kea, Kythnos, Syros, Paros and Naxos, are a normal short hop apart once you are among them. Santorini sits well beyond them, so whether it works comes down to your yacht and the weather that week.

Out and back from Athens is roughly 260 nautical miles before you have visited anywhere else, and it is not a symmetrical trip. The Meltemi blows from the north, so the run down is the easy half and the way back is the slow, uncomfortable one, with captains taking longer, safer lines rather than pushing into it.

At the pace we actually plan, that is not a day hop on any yacht, fast or slow. So we do it one of 3 ways: run the long leg overnight while you sleep, book a one way itinerary southbound and fly home from Santorini, or start you inside the Cyclades at Paros, Naxos or Mykonos so the island is close from day 1. A faster yacht makes all 3 easier, it does not remove the distance.

There is also a port fact worth having early, because it changes how the week ends. The yacht cannot go into port at Santorini. Guests go ashore by tender, which is normal there and works perfectly well. Finishing a charter at Santorini is the harder version, because disembarkation is by tender too and the rate normally carries 1 extra day for a Santorini finish.

Direction matters for the same reason. Athens to Santorini as a one way is common and bookable. Santorini to Athens is generally declined, because provisioning, docking and paperwork on the island are all difficult, so a one way week here runs southbound.

On a slower yacht there is a third option and it is a good one. The captain runs the long leg overnight while everyone sleeps, and you wake up at the island with the whole day in front of you instead of behind you. With a full crew on watch it is a comfortable, ordinary move rather than an endurance test. It does have to be agreed with the captain and the management company before you sign, which is why we raise it early rather than halfway through the week.

Speed is not the last word out there either. Weather can overrule any engine, so we plan the Santorini week around the Meltemi as much as around the throttle. If you are still choosing a hull type rather than checking a specific yacht, the best yacht type for a Santorini and Mykonos charter covers that side of it, and our 7 day Santorini itinerary shows how the week actually lays out.

The Saronic works on almost anything

If your shortlisted yacht is slow and you love it, point it at the Saronic Gulf instead. Hydra to Spetses is roughly 20 nautical miles, Spetses back up to Poros roughly 25 to 30, and once you are in the islands most hops fall inside our 2 to 3 hour window even at 9 knots. The one longer leg is getting out of Athens in the first place, and that is a single morning rather than a pattern.

This is also why the Saronic is where we send most catamaran charters. Catamarans are not fast, and here they do not need to be: you get long lunches, real afternoons ashore, and a swim stop between islands rather than a schedule. If you have your heart set on a catamaran, start by looking at the Saronic and the boat stops being a compromise entirely.

Why real cruising speed is slower than the spec sheet

The speed written on a yacht’s specs is her best case, measured in flat water. The Aegean in July and August is often not flat, and when the wind is up your captain will simply go slower so the ride stays comfortable and nobody is holding onto their glass. That is good seamanship, not a problem with the yacht.

What it means for you is small but worth knowing: plan with a little less speed than the number you see. If a yacht only just manages your route on paper, it will not manage it in August. We ask the captain what she really holds in summer conditions before we put her on your shortlist.

What a faster hull actually trades away

Ride comfort, mostly, and it is the thing people underestimate. A hull built to make 20 knots rides differently at speed from a displacement yacht ambling at 9, and in a chop your group will feel the difference. Faster is not automatically better. It is better at covering distance.

Fuel is the other side of it, and it is a smaller lever than most people expect: a faster hull burns more and it comes out of your APA rather than the charter fee. On a week that sits in the 100,000 to 250,000 euro band, fuel is not the number that decides which yacht you take. The actual figures are in our guide to fuel costs on a Greece charter.

When the yacht and the route do not match

There are 4 fixes, in the order we try them.

Change the yacht. Usually a move to a faster hull in the same budget band. If speed is the whole reason for the switch, read our comparison of sailing catamarans and power catamarans in Greece first, because hull type settles this more cleanly than length does, and our list of the fastest motor yachts we charter in Greece is the shortest route to a boat that solves it outright.

Change the start point. The cheapest version out of Athens is not a different island at all, it is a different port. Lavrio sits on the southeast side of Attica and takes a real bite out of the first crossing to Kea and the Cyclades, which on a slow yacht is most of a morning handed back on day 1. Beyond that, we see this most on Ionian requests. A client falls for an Athens based yacht and wants Zakynthos and Kefalonia, and the run out there is long, thin on scenery, and expensive in fuel. A yacht already based in the Ionian gives you direct access and lets you combine the northern and southern islands in one week. The same applies to the Dodecanese out of Rhodes or Kos. There is a fuller version of this argument in our guide to starting in the islands instead of Athens.

Switch to a one way itinerary. If Santorini or Mykonos is the point of the week, stop trying to come back. Dropping the return leg is the single biggest gain available on a slow yacht, and it is the fix our brokers reach for most often on this exact problem. It runs southbound: Athens to Santorini is a normal booking, the reverse generally is not. Our guide to round trip against one way in Greece covers the delivery cost and when it pays for itself.

Cut one stop. The last resort and the one clients resist most. Dropping the one island that sits furthest off your line, usually Santorini, hands most of 2 days back to the trip.

Send us the route and the yacht you are looking at

Tell us the islands you have in mind, or just the week you are picturing, and we will come back with the yachts that genuinely do it at a relaxed 2 to 3 hours a day. If something on your list does not fit, we will say so plainly and tell you the one change that fixes it. If every yacht on your list already reaches where you want to go, here is how we choose between them.

Still choosing a region rather than a boat? Start with our comparison of the Cyclades, the Ionian and the Saronic.

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