Athens, Greece's largest port. 21st Apr, 2017. Chinese Tourists rest at a Celestyal Cruises ship in Piraeus, Greece's largest port, on April 21, 2017. The first cruise ship carrying a group of Chinese tourists to the Aegean Sea islands set sail from Greece's Piraeus port Friday after a celebratory event. Credit: Ye Pingfan/Xinhua/Alamy Live News

- Image ID: J1K8EK
Athens, Greece's largest port. 21st Apr, 2017. Chinese Tourists rest at a Celestyal Cruises ship in Piraeus, Greece's largest port, on April 21, 2017. The first cruise ship carrying a group of Chinese tourists to the Aegean Sea islands set sail from Greece's Piraeus port Friday after a celebratory event. Credit: Ye Pingfan/Xinhua/Alamy Live News
Xinhua / Alamy Stock Photo
Image ID: J1K8EK