This particular pumice raft is floating towards the coast of Australia and it is big it can be tracked by satellite. Although it isn't the biggest pumice raft ever recorded, it is the biggest one observed in the world right now. Australian couple Michael Hoult and Larissa Brill were the sailors who stumbled upon this recent eerie phenomenon.
They described what they saw as a "rubble slick made up of rocks from marble to basketball size such that water was not visible. They added: "The waves were knocked back to almost calm and the boat was slowed to 1kt. The pumice is likely to start washing up on Australia's coastline in seven to 12 months time and could bring with it lots of marine organisms that are now hitchhiking on the raft.
Associate Professor Bryan explained to ABC : ""In this odd-square-kilometres of pumice out there right now, there's probably billions to trillions of pieces of pumice all floating together and each piece of pumice is a vehicle for some marine organism. This sort of event is said to occur around every five year and can actually help to regenerate the environment.
However, it can be hazardous to boats so it is not advisable to sail through a pumice raft if it can be avoided. Experts think that the mystery of Sandy Island, which can be seen as a phantom island on Google Maps, could be explained by a pumice stone raft. Sandy Island has been charted since as being located new New Caledonia in the South Pacific, but you won't find it in Google Maps today. The Famous Captain Cook was the first to spot Sandy Island and it was reported by other sailors too and even added to maps.
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