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
South West Solitary Island m thick. The strike of the beds is between 350° and 60° with dipping at 41° to 67°. There is an anticline with syncline on the southwest of the island. Tectonically it is part of the Coffs Harbour Block which in turn is part of the New England Orogen. South West Solitary Island South West Solitary Island or Groper Island is an island found off the New South Wales North coast and inside the continental shelf. It is located 18 km north-east of Coffs Harbour and about 18 km south-south-east of Woolgoolga. The island is part of the Solitary Islands