Originally Posted by polaris2.11
Turns out the buoys marked the stumps of an old pier - just barely submerged. Somehow, we managed to only hit one of the stumps (there were a lot) and fortunately I had slowed to 1-2 knots. So, she's still afloat, but I have yet to haul her and check the bottom. Plan for that this coming weekend. She's a trailer sailor, so easy to do.
The next morning, the water was down a foot or so, and we could see how lucky we were to only have hit one of the stumps. Sure felt like a bonehead.
If I don't know what a buoy represents, I avoid it for exactly this reason.
A chart probably would have told you about the stumps, the bottom and the depth, which could have been factors for a overnighter.