The East Indiaman "Endeavour" was sent to pilot the ships of the embassy to Tianjin, and joined the squadron when it reached the Yellow Sea. The mission arrived at the mouth of the Hai River (known as the Pei Ho in European sources of the time) on 25 July, and dropped anchor, finding the muddy water impassable for the larger vessels. The gifts were unloaded from the British ships and transferred upstream to Dagu by junks. From there, they were unloaded again onto smaller boats to Tongzhou, the endpoint of the Grand Canal. Macartney and his group continued separately to Dagu on the smallest British ships, the "Jackall", the "Clarence", and the "Endeavour". On 6 August, Macartney and Staunton met with Liang Kentang (梁肯堂), Viceroy of Zhili, who had traveled from Baoding to see them. Liang agreed to permit the "Lion" and "Hindostan" to return to Zhoushan at Macartney's request. He also informed Macartney that the meeting with the emperor was to take place at the Chengde Mountain Resort in Rehe (Jehol), rather than in the capital (Beijing) as the British delegation had expected.