Ile de noir moutier

robertj

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I’ve not anchored on the mainland side of this island so I’m asking is itfairly safe passage at high water to go south of the island heading to La Rochelle?
 
I’ve not anchored on the mainland side of this island so I’m asking is itfairly safe passage at high water to go south of the island heading to La Rochelle?

Not really. IIRC you get 3m over the causeway at HW springs and planning arrival at HW is not easy as the tide runs hard. Not impossible but not a relaxed trip.
 
I quite enjoy tricky bits of pilotage and I was thinking of having a go at it last year but I couldn't find enough information about it to justify the attempt. I keep my boat in Brittany but so far I haven't found anyone here who has actually done it.

I have used the anchorage SSW of La Chaise buoy several times (actually picked up one of the visitors' buoys). A pleasant spot.
 
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We've done it coming from the south many years ago. At the time we had a Hunter Delta, with a lifting keel, though it stayed down for this trip (draft 1.5m). I think the scariest bit was after crossing the causeway, when we were tacking in shallow water at the top of the tide. Anyway, it's doable, but you need strong nerves!

We used a Navicarte chart with good detail for inshore work.
 
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Another thing to consider is that if you do get it wrong it's not a gentle brush with a sandy bottom. You will smack hard into the side of the causeway. My perspective is from a 2m draft, however.
 
Looking at the navionics chart of the area I see that all that inner part is shown as oyster beds. We found ourselves in a similar situation on the east side of the Quiberon peninsula and it was not an enjoyable experience. Very difficult to find a clear way through.
 
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