St Davids Bishop's Palace (Llys yr Esgob Tyddewi) is the site of a ruined medieval-era religious building, which typically hosts an annual summer run of outdoor theatre productions in association with Festival Arts.
Chepstow Castle is an ancient and beautifully preserved Norman-era stronghold, which hosts a regular open-air theatre season with productions by various touring companies.
Gawsworth Hall Garden Theatre is a covered outdoor theatre in the grounds of Gawsworth Hall, a Tudor country house, which hosts regular seasonal outdoor productions.
Hever Castle is a thirteenth-century castle that hosts an annual festival of outdoor theatre, with performances taking place in an open-air auditorium in the grounds.
Mapledurham House is an Elizabethan-era manor house, which hosts various outdoor theatre productions on its grounds as part of its summer events programme.