Crawfurd was sent on another envoy mission to Burma in 1826, by Hastings's successor Lord Amherst, in the aftermath of the First Anglo-Burmese War. It was to be his last political service for the Company. The party included Adoniram Judson as interpreter and Nathaniel Wallich as botanist. Crawfurd's journey to Ava up the River Irrawaddy was by paddle steamer, the "Diana": it had been hired by the East India Company for the war, where it had seen action and travelled 400 miles up the Irrawaddy. There were five local boats, and soldiers making up a party of over 50.