Coasted over the sand bar at 1145am - just over a metre under the keel, so the new anti foul didn't get scratched - that's the good news!
Electrician spent an hour on the boat this afternoon, but as yet has not isolated the fault. The most likely culprit is the "blocking diode" for split charging the battery banks - if that is the problem we will be here for a week will we try and source a spare and have it installed. Oh well, schedules are for changing!
Nice in the marina though! We have the only spare berth at the moment, and that is the one reserved for short stay boats - so here's hoping no-one else arrives. There must be over 80 cruising yachts here!