KILLOUGH HARBOUR is tolerably safe and commodious; a small degree of caution, however, is necessary in sailing into it; for a rock stands in the middle of the entrance, covered at half flood, commonly called the water rock. Either to the east or west of this rock is a secure passage, the inlet lying south by east and north by west. On the west side of the rock open to Coney island is a strong quay, and a basin for ships, where they are defended from all winds, within which the harbour on both sides affords good anchorage for vessels of 150 tons. At the end of the quay the channel is 400 yards wide. The bay of Killough is formed by Rin-fad and the Long point to the east, and St John's point to the west, as the inner harbour is by a peninsula called Coney isle from the number of rabbits thereon, and not Cane isle as Sir William Petty supposes. An impetuous sea runs on all this coast in storms and spring tides.