South Stack on the publisher's website. South Stack South Stack () is an island situated just off Holy Island on the northwest coast of Anglesey. South Stack is famous as the location of one of Wales' most spectacular lighthouses, South Stack Lighthouse. It has a height of 41 metres (135 feet). It has a maximum area of 7 acres. Until 1828 when an iron suspension bridge was built, the only means of crossing the deep water channel on to the island was in a basket which was suspended on a hemp cable. The suspension bridge was replaced in 1964, but by 1983
Salt Island, Anglesey a whole is strictly monitored and is virtually impossible for pedestrians to enter. Salt Island, Anglesey Salt Island () is joined to Holy Island, Anglesey, in North Wales. It is a natural provider of shelter for the town's Old Harbour from the Irish Sea and is part of the Port of Holyhead. The island gained its name by a factory located on it which processed sea water in order to extract sea salt. By the early 18th century, the sea salt was often mixed with rock salt (often smuggled onto the island) to increase the quality of the factory's product.