Necker Island (British Virgin Islands) would survive their castaway adventure for at least three weeks, but as McCullin later recounted, "because of our gathering weakness ... out of temper, and out of water, we hoisted the red flag and were taken off in the early hours of the fifteenth day". According to McCullin, there was nothing idyllic about the desert island: "The mosquitos and other insects were more venomous and persistent than any I had encountered in Vietnam or the Congo." Richard Branson's "Extreme Tech Challenge" has been hosted annually at Necker Island since 2015. Described as one of the largest technology competitions in the
Louis Albert Necker Louis Albert Necker Louis Albert Necker de Saussure HFRSE MWS FGS (April 10, 1786 – November 20, 1861) was a Swiss crystallographer and geographer. He is best remembered for devising the optical illusion now known as the Necker cube. He was born in the Republic of Geneva, the son of botanist Professor Jacques Necker, nephew and namesake of statesman Jacques Necker, and Albertine Necker de Saussure. He was educated in Geneva, then sent to Edinburgh University in Scotland to study Sciences from 1806 to 1808. He returned to Scotland in 1841 and settled on the Isle of Skye, lodging with