Kildownet old cemetery is located near the southern tip of Achill Island, and about a quarter mile from Grace O'Malley's 15th century castle. The Old Cemetery extends from the edge of the main road to the shore of the bay (Google Map), and encompasses the partially restored ruins of St Dympna's Church, originally founded in the 7th century.

Thirty-two young people who died in the 1894 Clew Bay drowning tragedy, are buried in this cemetery, They had been heading across Clew Bay for the Steamer in Westport that was to take them to Scotland for potato picking, when their boat capsized in a sudden gust of wind. The tragedy is remembered in the song Hills Of Mayo

Kildownet Old Cemetery can aslo be found on Find A Grave