Running on Empties

Track Plastiki as she sails from San Francisco to Sydney, Australia.

If all goes according to plan, in mid-June 12,500 plastic bottles will float en masse into port in Sydney, Australia. The once-discarded bottles, you see, were used to build Plastiki, a 60-foot catamaran that on March 20 embarked on the 11,000-mile voyage from San Francisco with a six-member crew. Aside from the empties that make up the bulk of Plastiki, David de Rothschild also used organic glue made from cashews and sugar cane, bicycle generators and a urine-to-water recovery system. We asked if they'd be using tin cans and 11,000 miles of string for communications, but no, Inmarsat provided the satellite-based system.

To track Plastiki as she crosses the Pacific Ocean visit .