JAXAshby wrote:
Seen a number of those "uncharted rocks" on radar


no you haven't. an uncharted rock will be below water or so low in the water
so as to not show up on radar with any kind of sea running.

An uncharted rock may be always submerged, uncovered at low water
(potentially visible on radar) or always uncovered (visible on radar).
It's a big world out there and not all places that you may go to have
been thoroughly surveyed and not all charts are totally accurate.
Stand by my statement.

otn