...last year; we were there anchored outside the cove when the wind shifted to the north overnight. That put us near a lee shore with a long fetch, and the wind picked up to around the low 20's so it was a bit lumpy and uncomfortable. I was watching my position on the GPS and in the morning (from down in the cabin) I saw a mast go past us (from astern) and it was the mast of another boat that had been anchored astern of us! My immediate thought was #$*@ we must be dragging fast! I jumped up into the cockpit to find that the other boat had left and was underway.

We hadn't dragged.