Corsica

Rounding Cap Corse

Rounding cap corse by boat: the Giraglia gap, the passage inside or outside, wind acceleration off the headland and how to time the northern tip of Corsica.

The first time someone described Cap Corse to me they called it the finger Corsica points at Genoa. It is a thin peninsula sticking forty-odd kilometres north of the rest of the island, and rounding its tip is one of the small set-piece passages of a Corsican cruise. It is not in the same league of fear as the strait at the other end of the island, but it has its own habits, and the boats that get caught out here are nearly always the ones that treated it as a simple corner.

The lie of the land

The cape narrows to a point and then throws out one last hazard: Giraglia, a low rocky islet lying barely a nautical mile off Barcaggio at the very northern tip. It is about 600 metres long, only 50 metres wide, and rises around 60 metres. On it stands the Giraglia lighthouse, a cylindrical tower nearly 26 metres high, automated and controlled by the Marine Nationale at Bastia. That light is your mark for the whole rounding, the thing you aim to leave to one side cleanly.

The decision every skipper makes is the same one you make at any headland with an offlying danger: go inside the Giraglia, between it and the cape, or go outside it. The inside gap is short and it works in calm, settled conditions with good visibility, but it concentrates whatever sea and wind are running and leaves you no room if the engine coughs at the wrong moment. The outside route is longer by a mile or two and gives you sea room to breathe. In any real breeze, or any swell, I go outside. The mile saved inside is not worth the loss of options.

The wind nobody warns you about

The trap at Cap Corse is acceleration. A headland that long, with high ground behind it, squeezes and bends the airflow, so the wind at the tip is reliably stronger than the wind in the bays on either side. A pleasant 15 knots in the lee can be a hard 25 around the point, and it arrives with little warning as you clear the shelter. The northwesterly mistral is the worst offender, because it comes off the mainland already cold and hard and then gets a second acceleration off the cape, but any fresh breeze does it to some degree.

So I plan the rounding the way I plan any acceleration zone: I assume the wind at the tip will be a good deal stronger than the general forecast, I reef before I need to rather than after, and I time the passage for the calmest part of the day. As with most of the Corsican coast, the gradient wind and the afternoon sea breeze stack on each other, so an early rounding in the morning quiet is kinder than a midday one. If the forecast for the wider area is already brisk, the cape will be worse, and that is a day to stay put.

The two staging ports

You round Cap Corse going one of two ways, and each has a natural staging harbour.

Coming up the eastern side from Bastia, the obvious last stop before the tip is Macinaggio, the largest marina on the peninsula and the one developed by the Genoese back in 1620 for shipping oil and wine to the Italian mainland. It is well sheltered and it is the place to sit and wait for the cape to settle. From Macinaggio you are round the corner and into the western bays in a short hop on a good morning.

Coming the other way, down the wild western side, the staging harbour is little Centuri, tucked on the west coast between Pino and Ersa. It is small, pretty and a different world from the busier east, and it makes a fine first or last port on this side of the finger. The western coast of Cap Corse is more exposed and has fewer boltholes, so I treat the run between Centuri and the tip as the committing leg and pick my day for it carefully.

Building it into the lap

Cap Corse is the northern hinge of a full circuit of the island, the mirror image of the bonifacio strait at the southern end. Where the strait is about reefs and a regulated seaway, the cape is about wind acceleration and one offlying islet. Both reward the same habit: arrive with time in hand and round on the day the headland offers, not the day the calendar wants.

I have set the whole route out, both hinges and everything between, in the corsica circumnavigation itinerary. The single planning point I would lift out of it for the cape is this: do not schedule the rounding for the day you also want to make a long onward passage. Round the cape, drop into the first sheltered harbour on the far side, and let the next leg be a fresh decision.

Down the west side afterwards

Once you are round and heading south down the western coast, the next big feature is the deep cut of the Golfe de Saint-Florent, a proper natural harbour after the open western shore. I have written up the approach and the bay itself in the saint-florent and cap corse guide, and it is the obvious place to recover after the rounding and decide whether to push on towards the Balagne and the west.

If you are going the other way, north-about from the west to the east, then after the cape you drop down the gentler eastern shore towards Bastia, and the run opens out into the long plain of the eastern coast.

The current and the sea

People ask whether Cap Corse has a tidal race like a Channel headland. It does not, in the strict tidal sense, because the Mediterranean has so little tide. What it has instead is a wind-driven sea that the headland steepens, and a surface current that the prevailing winds set up and that bends around the point. The effect for a small boat is similar even if the mechanism differs: close to the tip, in any breeze, you can meet a confused, lumpy sea where the wind, the swell and the deflected current all meet over the rising ground off the cape. It is rarely dangerous in settled weather, but it is uncomfortable enough that you want to be through it cleanly rather than dawdling.

This is the other argument for the outside route in any wind. Going outside the Giraglia keeps you in deeper, more open water where the sea is longer and kinder, instead of in the pinch between the islet and the cape where everything concentrates. On a glassy morning none of this matters and the inside gap is a pleasant short cut. On a brisk afternoon it is the difference between a rounding you remember fondly and one you remember for the wrong reasons.

A short checklist for the tip

  • Decide inside or outside the Giraglia before you leave, and default to outside in any breeze or swell.
  • Assume the wind at the point is well above the general forecast, and reef early.
  • Round in the morning calm before the sea breeze loads on top of the gradient wind.
  • Stage at Macinaggio from the east or Centuri from the west, and use it to wait out a bad day.
  • Have the first sheltered harbour on the far side chosen, so the rounding is a complete passage in itself.

Done patiently, Cap Corse is a fine day. You clear the lighthouse, the wind eases as you come into the lee on the far side, and the whole northern finger of the island falls astern. It is the kind of passage that feels much bigger in the planning than in the doing, which is precisely the sign you planned it right.

Try BoatMap for free

Nautical charts, 50,000+ marinas and anchorages, marine weather and GPS tracking.

Download on the App StoreGet it on Google Play