NIce pics Rob. Mawes is a lovely little fort, Pendenis is fantastic, especially the battery and map room right on the headland bit overlooking the entrance. Would not like to sail in there.
Visited both when we were in Cornwall a few years back, also Carrick Roads, that is one wide and deep waterway and it goes far inland. We got the ferry over at King Harry and up river there were some big ships anchored.