Anse de Sablettes is a fortified bay near Toulon in France, immediately to the south of the port entrance.
In mid-May 1759, Edward Boscawen was found on Brodrick off Toulon and took over his command of the British forces, blockading Toulon and Marseille and ensuring the safety of Gibraltar.
Three months later, the French forces had retired into the inner roadstead, covered by the guns of Toulon's fortress, but still thought that such a large British force could not be solely meant for a blockade and must mean a landing was imminent - aware of this by captured letters, Boscawen encouraged this impression by threatening attacks on various points.
On 7 June, two French frigates attempting to breach the blockade from outside were forced to anchor in the Anse de Sablettes.
They failed to do so and, heavily damaged (the Culloden had to go to Gibraltar to refit), withdrew after an hour under the batteries' guns.