[maptime]

I think readers would be surprised to find out how poorly some regions of the Caribbean or Africa are charted. It's common for source data to be from the 1950s, for some ports I have seen tidal harmonics that were first recorded on rolls of paper. Charts of the arctic still relying on data from Cook(at least it doesn't change much thanks to it being rocky...)

I doubt many will shed a tear for the super yacht owners of the world but with their desire to go to ever more exotic locations they have highlighted how poor our data is for some parts of the world.