The MV Joyita may have been an “unsinkable” ship, but she wasn’t immune to other problems. With 25 passengers and crew onboard, the Joyita disappeared in the South Pacific in 1955. Five weeks after the ship was reported overdue, it was spotted off-course partially submerged and missing four tons of cargo including medical supplies, timber, food and empty oil drums. The radio was tuned to the international marine distress channel, the lifeboats were gone and blood-stained bandages were found. Some believe that the captain was injured or killed and that the passengers and crew felt they had no choice but to abandon the ship – but that still doesn’t explain the missing cargo.