Davaar Island was originally known as the island of Sanct Barre around 1449 -1508.
The modern name of ‘Davaar’ comes from the older Do Bharre – thy St Barre.
(Dr Gillies in his “Place Names of Argyll” accepts the popular derivation of the double-pointed (Da-Bharr) Island.)
Davaar, situated at the entrance to Campbeltown Loch, is only an island at high tide. The Dhorlin, a shingle bank, links the island to the mainland and can be crossed at low tide. (please check tide times at the local Tourist Information office)
The Davaar Lighthouse light was automated in 1983.
For more info: http://www.machrihanish.net/davaar-island