Hundreds of scuba divers will attempt a Guinness World Record in Australia this weekend by creating a huge underwater human chain.
A minimum of 400 divers will form the longest underwater chain of scuba divers on Saturday in Rye on the Mornington Peninsula in Victoria.
The Australian team are hoping to beat the current record set by an Italian team in May which saw more than 300 divers arrange themselves into a 270 metre human chain in Cesenatico, Italy.
Scuba divers have achieved numerous world records over the years.
Ahmed Gabr set the world record for the deepest scuba dive in 2014 when he reached a depth of 332.35m while diving in the Red Sea off the coast of Dahab in Egypt, spending more than 14 hours underwater.
The record for the largest scuba diving lesson was claimed in 2009 on Malalayang beach, Manado, Indonesia, where 2,465 people attended.
The oldest male scuba diver is world record holder Erwin Paul Staller who dived Grace Bay, Turks and Caicos in October 2014 at the ripe old age of 93 years. The dive lasted 36 minutes with a maximum depth of 15.85m.