The Niña
Credit: AFP / Getty Images

The last time the 70ft schooner Niña was heard from was June 4, 2013, when the crew of seven reported bad weather en route from New Zealand to Australia. The search and rescue efforts by the Rescue Coordination Centre New Zealand were massive. But when the official search was called off in July, family members of the U.S. crew weren't ready to give up. Working with Texas Equusearch and Tomnod, the family enlisted over 13,000 volunteers, who scoured 3,248,584 individual satellite images. Searchers pinpointed two possibilities and tried to determine their location using drift models. The effort was hampered by time it took to raise money for each air search because officials felt too much time had passed for the satellite images to be of use. No sign of the yacht was found.