Waiting it out
Grounding in the Bahamas is pretty much a given if you are going to do any exploring at all. I recently ran aground with my 4'11" winged keel on flat, solid rock/sand in. It was 5pm on a falling tide. The electronic Maptech chart which was chosen automatically by the navigation software showed two contour lines, indicating a channel, which I followed. While waiting for midnight and the rising tide, I flipped to other electronic charts in the same series, all of which confirmed that we were in the middle of a minefield of +'s on a fair sized shoal. There was absolutely no hint of this shoal on the original chart (no, really). Fortunately, it was a calm evening, wave height was about 1 foot, and tides in the Bahamas are generally under 3 feet. The boat settled nicely on its keel, which acted as a pedestal, preventing any heeling. Low tide was about 12 inches below our water line. The most difficult part to take was when the boat was just barely floating on the falling and again on the rising tide. The waves, small as they were, would raise and drop the rudder, rocking the boat on its keel. What we probably should have done was move weight (bodies) to the bow to keep the rudder off the bottom, and then to the stern to firmly plant it. Strapping a life jacket under the rudder probably would have been useful too (didn't think of it till later).The result was some minor damage to the fiberglass bottom of the rudder. I have since met a skipper who was not as lucky, being caught in the same situation with higher wind and waves. He had to replace the entire rudder and post.Moral of the story: Avoid grounding at all costs, but be prepared to deal with it when it happens; and, always consult more than one chart, particularly in areas where chart accuracy may be weak.