Despite the accident, the expedition proceeded to the west coast, which was surveyed as far as Roebuck Bay. At the end of August, they sailed for Mauritius. After three weeks there, they headed south to King George Sound. They then sailed north up the west coast, surveying as they went, before returning to Port Jackson. During this voyage, Roe was promoted to lieutenant. Back in Sydney, Roe carried out a survey of Sydney Harbour. Despite the capsizing of his boat on 19 August 1822, with the loss of four lives, the survey was completed, to be published by the Admiralty in 1826. Shortly after completion of the survey, Roe returned to England on the "Bathurst", arriving in June 1823.