Capel Lligwy is in the Anglesey countryside near Llanallgo ; the parish church of St Gallgo , Llanallgo is about 0 @.@ 78 miles ( 1 @.@ 26 km ) away . Part of the churchyard wall remains , showing that it was originally within a mainly circular enclosure , as often found with early churches . It is cared for by Cadw , the Welsh Assembly Government body responsible for the built heritage of Wales , and is open to the public .