Built with Portland stone, this 450 year old Tudor fortress remains intact and is now under the care of English Heritage.
The history of Portland Castle stretches back from the reign of Henry VIII to the Civil War Sieges, when it was used as a jail for prisoners and enemies of Oliver Cromwell. During the Victorian era, the castle became a private residence for Captain Charles Mannering, the man who built what has now become known as the largest man-made breakwater harbour in the world.
Portland Castle was also used as a Seaplane Station during WWI and as an embarkation point for the D-Day invasion of Northern Europe during WWII.
| Dates | Opening Times | Days Open |
| 1 Apr - 30 Jun | 10am-5pm | Mon, Tue, Wed, Thu, Fri, Sat, & Sun. |
| 1 Jul - 31 Aug | 10am-6pm | Mon, Tue, Wed, Thu, Fri, Sat, & Sun. |
| 1-30 Sep | 10am-5pm | Mon, Tue, Wed, Thu, Fri, Sat, & Sun. |
| 1-31 Oct | 10am-4pm | Mon, Tue, Wed, Thu, Fri, Sat, & Sun. |
| 1 Nov - 31 Mar | Closed | |