This four-story artillery fort was constructed under Henry VIII’s rule between 1540-1542. It is situated in a prime position overlooking the Carrick Roads, the name given to the wide estuary of the River Fal. This is one of the widest natural harbors in the world, making it a prime spot for the passage of ships going to and from the Mediterranean Sea and the Atlantic Ocean. The anchorage of many ships in this area made it a vulnerable area for potential attack and invasion from Europe. St. Mawes Castle and…