Aiko Ono was working as a photographer in the bustling megalopolis of Tokyo, but she had long dreamed of the ocean. When an unexpected opportunity arose, she left her life in the city to join Japan’s legendary female “ama” divers. For centuries, ama divers have scoured the ocean floor for pearls and seafood, passing on their expertise to future generations of women. Now, she’s found honor and peace in upholding this 3,000-year-old tradition.