Australia's Great Barrier Reef is the world's largest coral system (Credit: barrierreef.org)

After conquering the roads, Uber, the peer-to-peer ridesharing service, now has its eyes set underwater. On May 24, 2019 the American company launched scUber, “the world’s first ride-share submarine experience," which will take tourists on a memorable journey across the world's most extensive coral system — Australia's Great Barrier Reef.