But about July 6, Cæsar set sail from Wissant about sunset. As the wind was light from the south-west he had a favourable air. There was no moon, but the nights are warm and not very dark at the beginning of July. The tide probably set him down some distance in the vicinity of Gris Nez, for it did not begin to flow to the north-east till 10 p.m. Good progress was made this time, and by midnight the leading division was getting well up to the South Foreland. The wind, as it so often does on a July night, began to fail and finally dropped utterly, so that the fleet had barely steerage way. The strong Channel flood took hold of them, and about 3.15 a.m. Cæsar was abreast of Kingsdown (a little to the south of Walmer). Eventually he arrived at Sandwich about noon, having no doubt anchored for six hours, since the Channel tide was just about to run to the south-west when he had got to Kingsdown. This time he left his 600 ships not hauled up on the beach, but at anchor, having disembarked his troops. Yet once more a storm rose which caused some of the vessels to part their anchors, others to collide with each other, and others still to be dashed ashore and damaged. Forty were totally destroyed, but the remainder he managed to patch well enough. They were hauled ashore, probably by means of windlasses or capstans, greased rollers being inserted under the keels. They were then surrounded by earthworks so as to be protected efficiently. About the middle of September and about nine o’clock at night, Cæsar and his fleet once more returned from Britain and arrived at Boulogne about daybreak.