On 28 March 1762 "Achilles", along with several other warships and transports carrying 10,000 troops, set sail from Saint Helens to attack the French at Belleisle. The fleet arrived on 7 April. The next day the army attempted a landing under the cover of "Achilles"s guns. The attack was forced back and the army lost 500 soldiers killed, wounded or captured. The army finally landed successfully on 22 April, and besieged the French in Le Palais until 7 June – when the French surrendered.