There is a moment on the way into Ajaccio when you raise the Sanguinaires, the chain of red-brown islets that guard the mouth of the gulf, and the whole approach suddenly makes sense. They are the gatepost. Get them sorted, read the gulf behind them, and the rest of the arrival into the capital of Corsica is straightforward. Miss-read the wind that funnels down the gulf, and you can have a lively last hour into what should be an easy harbour.
Your gatepost: the Sanguinaires
The Sanguinaires are a small archipelago of islets off the western end of the gulf, lying around six kilometres from the town. The biggest, Mezu Mare or Grande Sanguinaire, is the one that matters for pilotage, because it carries the lighthouse that marks the entrance to the Gulf of Ajaccio. That light has stood since 1870, built specifically because this stretch of Corsica was notorious for reefs and currents, and it sits well above the sea on its islet. There is also an old semaphore station up there, the Mezzu Mare semaphore from 1865, with a clear 360 degree view over the gulf entrance.
The classic approach is to come round the outside of the Sanguinaires and then turn up into the gulf. The lee side of the main islet gives shelter in any westerly, and it is a popular lunch anchorage for boats that have come the ten miles or so out from Ajaccio just to see them. If you are only day-sailing, that anchorage on the eastern, sheltered side is the obvious objective: it holds in a westerly and gives you the islets, the lighthouse and water clear enough to swim before you turn for home.
If you are arriving from up the coast, leave the islets to seaward, give the offlying rocks a sensible berth, and only turn in once you are sure you are clear. As everywhere on this coast, the chart is the authority, not the eye, and the SHOM coverage of the gulf is what I plot against.
Reading the gulf
The Gulf of Ajaccio is a deep, wide bite in the west coast, open to the southwest. That orientation tells you most of what you need. A southwesterly drives straight in and can build an uncomfortable swell across the whole gulf, so it is the wind to watch on the approach. The compensating fact is the daily sea breeze, which on a settled summer afternoon fills in from seaward and funnels up the gulf towards the town, often a good deal fresher than the morning gradient suggests.
The practical upshot is the same lesson the rest of Corsica keeps teaching: the morning is calm and the afternoon is breezy. If you can time your arrival for the forenoon you get a flat, easy run up the gulf. Leave it until mid-afternoon and you may be beating the last few miles into a sea breeze that has stacked on top of whatever else is about. None of it is dangerous in settled weather, but it is the difference between a pleasant arrival and a wet one.
Into the harbour at Ajaccio
Ajaccio is a proper city harbour, Napoleon's birthplace, with marina berths and all the resupply a cruising boat could want, which makes it one of the key provisioning stops on the west coast. The marinas sit in under the town, and the approach off the gulf is open and well marked. Call ahead for a berth in season, because Ajaccio is busy and the visitor space is finite in July and August.
For the wider picture of the gulf, the town and where it fits in a cruise of the island, I have written the ajaccio and the gulf of ajaccio guide, which covers the harbour in more depth than I will repeat here. The short version is that Ajaccio is the natural hub of the west coast: a place to reprovision, fill water, fix what broke and reset before the next leg.
A note on the lighthouse and the night
If you arrive after dark, and on a long west-coast passage you sometimes will, the Sanguinaires light is a friend. It was put there in 1870 precisely because this corner of Corsica chewed up shipping on its reefs, and it does exactly the job it was built for: it marks the entrance to the gulf from a long way out. A night arrival into Ajaccio is manageable because the city and the marinas are well lit and the gulf is deep and open once you are past the islets, but I would still rather raise the Sanguinaires in daylight and run the last stretch with the rocks visible. If the timing forces a night entry, take it slowly, keep well off the islets and their outliers, and let the light and the chart, not the eye, do the pilotage. There is no reward for cutting corners off the Sanguinaires in the dark.
Where it sits on the coast
Ajaccio is roughly the midpoint of the western Corsican coast, which makes it a natural pivot. South of it the coast runs down towards the southern gulfs and eventually the bonifacio strait, the regulated, reef-strewn pinch at the bottom of the island. North of it the coast climbs towards Cap Corse, and the next major rounding is the rounding cap corse passage at the very top.
I have stitched all of these together in the corsica circumnavigation itinerary, and Ajaccio nearly always falls out as a hub stop in that plan: a place where you regroup, restock and let crew come and go, because the airport and the city services make it easy.
Anchoring off the islets
The day-anchorage on the sheltered eastern side of Mezu Mare deserves a word of its own, because it is one of the better lunch stops on this part of the coast and it is easy to get wrong. The holding is good in sand in the right spots, but like most of Corsica there is posidonia seagrass about, and you want to drop on sand rather than over the green. Read the bottom on the chart and through the water, which here is clear enough to see what you are dropping onto in the usual depths. In a settled westerly it is calm and lovely. In anything with south or east in it the anchorage becomes untenable, because the shelter only works from the west, so it is a fair-weather stop and not an overnight bolthole in changeable conditions.
The other thing to know is that the Sanguinaires are popular. Tripper boats run out from Ajaccio and the gulf of Lava all day in season, sunset cruises included, so the anchorage and the water around the islets get busy in the afternoon. If you want it quiet, go early, which fits the morning-calm advice for the whole gulf anyway.
A simple plan for the arrival
- Identify the Sanguinaires lighthouse on Mezu Mare early and use it as your gatepost into the gulf.
- Leave the islets and their offlying rocks to seaward, and only turn up into the gulf once you are sure you are clear.
- Watch a southwesterly above all, because it drives straight into the open mouth of the gulf.
- Time the run up to the town for the morning if you can, before the sea breeze funnels up the gulf in the afternoon.
- Book a berth ahead in July and August, when Ajaccio fills.
The reward is one of the more satisfying arrivals on the island. You round the red islets, the gulf opens ahead with the mountains behind the town, and the whole sweep of the bay draws you in towards Ajaccio. If you have timed it for a calm forenoon, the last miles are flat and easy, and you tie up in the heart of a working Corsican city with the afternoon ahead of you. Few approaches in the Mediterranean give you that much drama for so little difficulty, provided you respect the one wind that can spoil it.
