The Castle and Quays – North, South and Monkton Bridge Quays Ancient origins It is likely that boats and ships were using the area of the three old town quays for two thousand years or more. Romans used waterways as a matter of preference, as did the Viking invaders; and traders from the continent and Ireland would have all visited this fertile area of Pembrokeshire (old Deheubarth), where there would have been fine early settlements surrounding what is now Pembroke Castle. The Monkton bridge side of