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 Rickle in Time being and instructs Morty and Summer to break off their collars, but the resulting chain of uncertainty further splits their realities into dozens of different timelines. After defeating the testicle monster, Rick notes that time is falling apart. Summer's collar transports her back to her time, but one of the Mortys' collar is broken. With the garage falling away piece by piece, the Morty with the broken collar falls into the spaceless void and Rick jumps after him. He gives Morty his collar and instead prepares to face death. But then, Rick spots Morty's collar floating below him, fixes it,