Abby Sunderland, the 16-year-old Thousand Oaks girl trying to be the youngest solo sailor to circle the world, lost contact with her family early Thursday in the southern Indian Ocean. Relatives and friends of 16-year-old Abby Sunderland, the Thousand Oaks solo sailor trying to circumnavigate the globe, were clinging to hope Thursday that the young adventurer would be found alive by rescuers converging on a remote area of the southern Indian Ocean.