Visitors to Carrickfergus Castle are being invited to step into 800 years of history as part of this year’s European Heritage Open Days (EHOD) programme.

The medieval landmark is one of the many venues across Northern Ireland taking part over the weekend of September 12 and 13, 2026.

Begun by John de Courcy soon after his 1177 invasion of Ulster, the castle was besieged in turn by the Scots, Irish, English and French.

It played an important military role until 1928, when it transferred to state care.

Visitors to Carrickfergus Castle are being invited to step into 800 years of history as part of this year’s European Heritage Open Days programme. Photo: Helena McManus

placeholder image — Visitors to Carrickfergus Castle are being invited to step into 800 years of history as part of this year’s European Heritage Open Days programme. Photo: Helena McManus

As part of EHOD, visitors can enjoy free admission and explore the castle at their own pace through a self-guided visit, with fascinating historical displays, impressive collections of cannon, and breath-taking coastal views.

Running from 9:30am-5:00pm, the event forms part of the Centenary of Care, marking 100 years since legislation was introduced to protect Northern Ireland’s historic monuments.

Due to ongoing public realm works, some areas of the castle may be inaccessible during the EHOD weekend.