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
Collapse! the two. Collapse! Collapse! is a series of award-winning tile-matching puzzle video games by GameHouse, a software company in Seattle, Washington. In 2007, "Super Collapse! 3" became the first game to win the Game of the Year at the inaugural Zeebys. The series has been discontinued since 2015 due RealNetworks shutting down its internal games studio. In 2006, a spin-off series called Super Collapse Puzzle Gallery! was developed into 5 games. The classic "Collapse!" game is played on a board of twelve columns by fifteen rows. Randomly colored blocks fill the board, rising from below. By clicking on a group