South Stack 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 the bridge had to
North West Solitary Island is between 0° and 20° with overturned beds dipping to the east. The mudstone shows cleavage at an angle steeper than the bedding planes by 20°. Tectonically it is part of the Coffs Harbour Block which in turn is part of the New England Orogen. North West Solitary Island North West Solitary Island is an island found off the New South Wales coast and inside the continental shelf. It is located 30 km north-east of Coffs Harbour and about 18 km south of Wooli. The island is part of the Solitary Islands Marine Park established 2 January 1998 and managed