Carna once formed part of the neighbouring Glencripesdale Estate stretched for 32 kilometres (20 mi) along the entire south side of Loch Sunart, and the entire east side of Loch Teacuis.
It comprised the smaller estates of Glencripesdale, Laudale and Rahoy, and measured 106 square kilometres (41 sq mi), and its centre point was the 27 bedroom Glencripesdale Castle.

It was purchased in the 1870s by the three Newton brothers (Canon Horace Newton, Goodwin Newton & William Newton III).
Dr. Earnshaw Hewer, the son in law of Canon Newton, bought the island in 1922 when the rest of the estate was being sold after the Canon's death and thus Carna is the last remaining part still owned by the family.
Carna once formed part of the neighbouring Glencripesdale Estate stretched for 32 kilometres (20 mi) along the entire south side of Loch Sunart, and the entire east side of Loch Teacuis. It comprised the smaller estates of Glencripesdale, Laudale and Rahoy, and measured 106 square kilometres (41 sq mi), and its centre point was the 27 bedroom Glencripesdale Castle. 
It was purchased in the 1870s by the three Newton brothers (Canon Horace Newton, Goodwin Newton & William Newton III). Dr. Earnshaw Hewer, the son in law of Canon Newton, bought the island in 1922 when the rest of the estate was being sold after the Canon's death and thus Carna is the last remaining part still owned by the family.
Càrna