We can get on and off the boat

 
Mooring problem solved.  All it took was a cats cradle of ropes and now we have our sugar scoop held a few inches away from the wall ladder over the full range of the tide.  Here is Bertie climbing up at low tide on his way to the ARC inaugural party. 
 
Actually it was not quite as simple as just setting up the ropes because, with me having spent quite a while in the morning setting it up, the marina attendants came along in the afternoon and told us we had to move sideways because we were not quite in a straight line with the mooring buoys.  It took a half hour of intervention by the ARC organisers to persuade them that we were OK to stay where we were. 
 
 
 
 
Today we had our safety inspection and passed without any issues, which was a relief.