Raising the wall's height to include a second tier of higher arrow slits behind a new parapet walk and adding additional turret towers to the ends of the walls where they abutted the cliff edges. In the mid 16th century, another large D-shaped tower (named the "Five Arches") was built in the Elizabethan period following fears about a second Spanish Armada. In 1648 during the Second English Civil War, a unit of Royalists under the command of Rice Powell held a refortified Tenby for 10 weeks until they were starved into surrendering by besieging Parliamentarians. Present day A few features of the medieval castle remain. A path from Tenby harbour to the top of Castle Hill passes through the main square gateway. On the summit of the promontory is a small tower. A circular walk which was laid out in the 19th century follows the line of the original curtain walls. Tenby Museum & Art Gallery is built on the remains of the castle's domestic building, probably the great hall. Although the north gate has been demolished to widen the road, Tenby town walls on the north side are largely complete. The eastern walls and towers remain intact. See also Tenby Castle (locomotive) References External links Tenby Castle Castle Castles in Pembrokeshire Castle ruins in Wales Grade II* listed buildings in Pembrokeshire Grade II* listed castles in Wales