Every year, the Brownsea Open Air Theatre company (BOAT) perform 'Shakespeare on an Island': that is, a Shakespeare play on Brownsea Island. The Guardian has named BOAT as one of the UK's Top 10 Open Air Theatre Venues, with Woman's Weekly listing…
Cardigan Castle (Castell Aberteifi) is an eleventh-century stronghold, which typically hosts a summer outdoor theatre season in association with Theatr Mwldan.
The Carrickfergus Mill Ponds are the site of a local nature reserve, which hosts occasional open-air Shakespeare performances as part of a Shakespeare in the Park festival.
Castlewellan Castle is a nineteenth-century house surrounded by extensive grounds; now a Christian conference centre, the site has also hosted open-air theatre performances by Kabosh.