 By the end of the month, the convoy had reached Gibraltar.During May and June as the forces scheduled to participate in Operation "Husky" — the invasion of Sicily — gathered in Algerian and Tunisian harbors — "Seer", now a unit of the 8th Amphibious Force's Escort-Sweeper group, escorted ships to Bizerte, Oran, Ghazaouet, and Sousse; and patrolled off these ports.On 6 July, she joined the "Joss" attack force; and, on the 9th, she departed for Sicily.