A Dutch couple I shared a pontoon with in Port-Vendres kept a spreadsheet. Every night, every port, every euro. Over one summer cruising from Brittany to the Spanish border they reckoned marina fees came to just under 3,200 euros. Their neighbour, a single-hander on a slightly smaller boat who anchored four nights in five, spent under 600 euros on harbours all season. Same coast, same months, a fivefold difference. That gap is the whole question, and it is not as simple as "anchoring is free".
Let me lay out the actual numbers, because the decision between anchoring vs marina in France turns on more than the nightly rate.
What a berth costs in 2025-2026
A visiting 12 metre boat pays roughly 50 to 150 euros a night in a French marina in high season, and 30 to 100 in the shoulder months. The range is wide because location dominates. A municipal harbour on the Atlantic coast might charge a 12 metre yacht 35 euros in June. The same boat in a fashionable Riviera port in August can pay well over 100, and the premium Cote d'Azur addresses run far higher again.
Size drives the bill. Marinas charge by length, sometimes by length times beam, so a catamaran or a beamy modern cruiser pays more than her waterline length suggests. Step up from 12 to 15 metres and you can roughly double the nightly fee in the same port.
Then there are the extras that do not show on the headline rate. Electricity may be metered separately on a token. Water can be tokened too. Some ports add a tourist tax per person per night. None of these are large on their own, but across a two-week cruise they add 100 to 200 euros you did not budget for. I cover the practical side of all this in my guide to water, electricity and showers in French ports.
What anchoring actually costs
The headline is zero, and along most of the French coast that holds true. You drop the hook in a bay, you swing, you pay nobody. But "free" hides three real costs.
The first is gear and its wear. To anchor confidently night after night you need ground tackle you trust: enough chain, an anchor sized up from the maker's recommendation, and ideally a windlass so you are not breaking your back. That is a few hundred to a couple of thousand euros of kit, spread over years, but it is real money. A dragging anchor at 0300 in a rising mistral is the most expensive saving you will ever make.
The second is the dinghy and getting ashore. Anchoring means you ferry yourself, your crew, your shopping and your rubbish back and forth. An outboard burns fuel, the dinghy needs lifting and stowing on passage, and a wet landing on a beach in a swell is its own adventure. Budget for it and learn to read a landing.
The third is regulation, and this is where France has tightened up. Anchoring is no longer a free-for-all in the Mediterranean. To protect the posidonia seagrass meadows, large swathes of the coast now ban or restrict anchoring, with real fines for dropping on protected beds. If you are heading east, read up on the posidonia anchoring rules before you assume any pretty bay is fair game. Marine parks like Port-Cros add their own mooring-buoy-only zones with a charge.
The maths over a fortnight
Picture a two-week cruise on a 12 metre boat in high season. Marina every night at, say, 90 euros average plus 10 in extras: 1,400 euros for the fortnight. Anchor 10 nights and take a berth 4 times for laundry, water and a proper shower: 4 times 100 is 400 euros, plus maybe 60 in dinghy fuel and the slow amortisation of your ground tackle. Call it 500 euros against 1,400.
That 900 euro saving is the prize, and it is why so many liveaboards and long-cruisers anchor by default and treat the marina as an occasional resupply. But notice what the four marina nights buy: a flat night's sleep with no anchor watch, full water tanks, hot showers, clean laundry, charged batteries, easy provisioning. Those are not luxuries on a long cruise, they are how you keep the boat and the crew going. The smart pattern is not all-or-nothing, it is anchoring as the base case and the marina as a deliberate, budgeted tool.
If you are staying a whole season
The night-by-night sums change completely once you stop moving. If you base a boat in one French port for the year, you buy an annual contract, and that is where the marina becomes genuinely good value per night even if the headline number looks large.
For a 12 metre boat an annual berth on the Mediterranean averages around 5,000 euros, but the spread is enormous. Affordable ports like Saint-Raphael's Vieux Port or Martigues come in under 3,000 euros a year, while a fashionable address such as Nice or Port Grimaud can run to 7,000 to 8,000. The Atlantic coast is cheaper, with yearly contracts roughly 1,500 to 4,000 euros depending on the port and the facilities.
Divide even a 5,000 euro annual berth across a season and the per-night cost is a fraction of the 90 euros a transient visitor pays. The catch is availability: the good-value ports have long waiting lists, and you usually have to commit to and pay for the whole year whether you sail or not. Add the small annual navigation tax (the francisation, around 200 euros for a 10 metre boat) and the 20 to 40 percent that electricity, water and services pile on top, and you have the true running cost of a fixed base. Anchoring does not compete with that model; it is a different way of cruising entirely.
Where the calculation flips
Anchoring wins easily on settled Atlantic and Mediterranean coasts in good weather with reliable holding. It loses, fast, in a few situations.
Weather is the obvious one. When a blow is coming, the marina fee is cheap insurance. I have happily paid 100 euros to sleep through a gale rather than sit anchor watch all night, and never regretted it. A mistral or tramontane can pin you in port for two or three days, so factor those forced marina nights into any Med budget.
Tides flip it too. On much of the Atlantic and Channel coast, the big tidal range and strong streams mean fewer all-weather anchorages and more harbours that dry or have locked basins. North Brittany and Normandy push you towards berths more than the Med does.
And the boat itself matters. A single-hander or a couple who anchor slickly will do it most nights. A family with young children, or a charter crew on a tight one-week itinerary, will value the marina's showers, restaurants and step-ashore convenience far more than the saving. There is no universal right answer, only the one that fits your boat, your crew and the coast you are on.
The cost the spreadsheet forgets: fuel and time
Two things rarely make it onto the comparison, and both favour anchoring less than people assume.
Fuel is the first. If your idea of anchoring involves motoring an hour out to a remote bay and an hour back each day to land the crew, you are burning diesel that a marina berth would have saved. Marine diesel in France is not cheap, and prices move daily, so a long daily commute by dinghy or by mothership quietly erodes the saving. The anchorages that pay off are the ones you can reach on passage anyway and step ashore from easily, not the ones that turn into a fuel-hungry daily round trip.
Time is the second, and it is the one only you can price. Anchoring well takes effort: choosing the spot, reading the holding, setting properly, watching the swing, ferrying ashore, keeping half an ear open at night. On a long, slow cruise that effort is part of the pleasure. On a two-week holiday with limited days, the hours you spend on anchor admin are hours you are not exploring ashore or simply resting. Some crews find the marina's convenience worth every euro precisely because their time off is scarce.
How I actually do it
My rule of thumb after several French seasons: anchor when the forecast is settled and the holding is good, take a berth every third or fourth night to reset, and always take the marina when a blow is due. I keep a rough running total in my head, the same instinct as that Dutch couple's spreadsheet, because the cost only bites when you stop noticing it.
Treat the marina as a service you buy when it earns its keep, not a default. Anchor with good gear and a clear conscience about the seagrass. Do that and a French summer afloat costs a fraction of what the brochures suggest, without the white-knuckle nights. Before you commit to a stretch of coast, it is worth understanding how the capitainerie and port culture work, because a friendly harbour master will often find you a cheaper corner berth than the website ever advertised.
