Sinkhole divers. Some of the most spectacular are the Zacatón cenote in Mexico (the world's deepest water-filled sinkhole), the Boesmansgat sinkhole in South Africa, Sarisariñama tepuy in Venezuela, the Sótano del Barro in Mexico, and in the town of Mount Gambier, South Australia. Sinkholes that form in coral reefs and islands that collapse to enormous depths are known as blue holes and often become popular diving spots. Large and visually unusual sinkholes have been well-known to local people since ancient times. Nowadays sinkholes are grouped and named in site-specific or generic names. Some examples of such names are listed below. The
A Void A Void A Void, translated from the original French La Disparition (literally, "The Disappearance"), is a 300-page French lipogrammatic novel, written in 1969 by Georges Perec, entirely without using the letter "e" (except for the author's name), following Oulipo constraints. It was translated into English by Gilbert Adair, with the title A Void, for which he won the Scott Moncrieff Prize in 1995. Three other unpublished English translations are titled A Vanishing by Ian Monk, Vanish'd! by John Lee, and Omissions by Julian West. The book has also been translated into German (by Eugen Helmlé as Anton Voyls Fortgang, 1986),