Extensive works have been carried out along the sea front.
The sea-front, overlooking the English Channel, stretches nearly 4 m.
The Den, or Dene, forms a promenade along the sea-front, with a small lighthouse and a pier.
It consists of two storeys with open colonnades, forming a long loggia on the ground and first floors, with seventeen arches on the sea front and eighteen on the other facade.
(5, 6, 7) The Emporium (Exchange), Apostases (Magazines) and Navalia (Docks), lying west of (4), along the sea-front as far as the mole.