Aberlleiniog Castle

Like so many sites on Anglesey, Aberlleiniog is a hidden gem. It combines fascinating history with natural beauty - without any of the crowds, costs, or hassle you find elsewhere.

Aberlleiniog Castle is a little-known Scheduled Ancient Monument, situated near Penmon, on the Isle of Anglesey, in North Wales.

It nestles at the heart of a peaceful woodland Nature Reserve, close to the shores of the beautiful Menai Strait, within the Anglesey Area of Outstanding Natural Beauty (AONB).

The castle is owned by Menter Môn, Anglesey's Enterprise and Rural Development Agency. It is managed by a steering group of local representatives.. The management priorities for the site include its historical and cultural interest, nature conservation and public access.

Aberlleiniog Castle's natural surroundings and unique history set it apart from any other ancient monument.

Its captivating story abounds with colourful characters, including Welsh Princes, Norman overlords, Viking raiders, traitors, pirates, Civil War commanders, wealthy estate owners and Georgian naturalists! It has something to capture everyone's imagination!

Aberlleiniog truly is a 'secret' castle, with many secrets still to be uncovered!

The castle is open to the public all year round, free of charge.

For further details please see our heritage website.

Contact details

Grid reference: SH 61646 79310

Nearest post code: LL58 8RY


Other Things to do

  • Active and Outdoors

    'Active and Outdoors'

    'Making the most of the great outdoors is easy on Anglesey, as the great outdoors is something we have plenty of. '

  • Coastal


    'Who can resist a stunning stretch of coast? '

  • Family


    'The best part of any visit to Anglesey is knowing that all the family will take home some great memories to share. '

  • Walking


    'Going for a walk on Anglesey is a pleasure in itself.'

Other Attractions

  • Beaumaris Castle

    'Beaumaris Castle'

    'Beaumaris was the last of Edward I's 'iron ring' of castles along the North Wales coast. '

  • Beaumaris Courthouse

    'Beaumaris Courthouse'

    'Beaumaris Courthouse is one of Anglesey’s most fascinating buildings and one of the oldest courthouses in Britain.'

  • Beaumaris Gaol

    'Beaumaris Gaol'

    'This building is full of sad memories and secrets providing a fascinating insight into the world of the prisoner during the 1800s.'

  • Landscape Aberlleiniog Llangoed and Penmon

    'Landscape Aberlleiniog Llangoed and Penmon'

    'Aberlleiniog, Llangoed and Penmon all lie in close proximity to one another within the south eastern corner of Anglesey. '