Isle of Wight Needles
The Needles are among the most iconic coastal landmarks in southern England: three serrated chalk stacks rising from the sea at the westernmost tip of the Isle of Wight, their brilliant white faces contrasting sharply with the green water surrounding them and the striped red-and-white lighthouse perched on the outermost rock. They are the end result of millennia of coastal erosion acting on a chalk ridge that once connected the Isle of Wight to the Purbeck Hills of Dorset across what is now the English Channel, and they represent one of the most visually arresting geological features on the entire English coast. The chalk that forms the Needles was laid down beneath a warm shallow sea around 70 million years ago, built up from the compressed remains of microscopic marine organisms. The same chalk, tilted by later earth movements to stand nearly vertical rather than horizontal, forms the brilliant white cliffs that flank the Needles on either side. The result is a dramatically striated cliff face where different chalk layers, separated by thin bands of flint, are exposed in vivid cross-section. The viewing point above the Needles at Alum Bay is one of the Isle of Wight's most visited attractions. A chairlift descends from the clifftop to the bay below, where the multicoloured sand cliffs behind the beach display over twenty distinct geological layers in shades ranging from white and yellow through ochre, red, grey and even black. Collecting sand from these cliffs is no longer permitted, but the traditional local souvenir of coloured Alum Bay sand layered in glass bottles has been made and sold here for well over a century. A former Royal Air Force base on the clifftop above the Needles houses the Needles Old Battery, a Victorian coastal artillery installation dating from 1861 that was later used as a rocket testing facility during the Cold War. The battery is managed by the National Trust and contains a tunnel through the cliff to a searchlight post that provides one of the closest views of the Needles stacks available without taking to the water. Boat trips from Alum Bay operate seasonally and allow visitors to pass directly beneath the lighthouse for a perspective unavailable from the land. The lighthouse itself, automated since 1994, has guided ships through the dangerous passage between the island and the mainland since it was built in 1859. A previous lighthouse stood on the clifftop above, but fog so frequently obscured it from ships at sea level that a more exposed position was chosen. The current structure has become one of the most photographed lighthouses in Britain and features in countless images of the English coastline.