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Join in the national celebration of architecture and heritage in Wales during September!

Registration is now open for Wales’s Open Doors 2021.

Wales’s much-loved historic attractions are expected to welcome thousands of visitors during September 2021 as part of Open Doors — the largest heritage festival in Wales.  

Thousands of people will step back in time during September 2021 as hundreds of venues across Wales open their doors, including several that are not normally open to the public.

Part of the wider European Heritage Days programme, Open Doors has seen hundreds of Welsh venues offer free entry, activities and events throughout September.

Wales is one of 50 countries taking part in Open Doors, known internationally as European Heritage Days. The programme is the largest annual free celebration of architecture and heritage to be held in Wales and the wider UK and the largest volunteer event in the heritage sector. It gives members of the public free access to fresh aspects of the built heritage and draws visitors to Wales from countries throughout the world.

Cadw has now opened registration for sites and venues across Wales to take part in the annual heritage festival. Participating venues can access free resources and register online through Cadw’s online Open Doors portal.

Registration is open until 31 July 2021. 

This year Cadw will be celebrating the range and breadth of its sites in care, as part of its own Open Doors programme, offering expert tours at some of its unstaffed monuments; opening sites which are normally closed; and opening up areas that visitors do not normally get to see as part of Visit Wales’s ‘Year of Outdoors’.

Being outdoors and taking part in outdoor activities has significant health benefits and Cadw encourages the people of Wales and visitors to enjoy even more Cadw sites during this year’s Open Doors festival in September 2021.

Register your event  

Open Doors General Information Infographic