You can check shipping movements at a selection of the world's major ports here, and locate individual vessels by means of satellite tracking
Alexandria, Egypt
Cape Town, South Africa
Chennai, India
Conakry, Guinea
Dakar, Senegal
Douala, Cameroon
Felixstowe, UK
Hamburg, Germany
Istanbul, Turkey
Jakarta, Indonesia
Karachi, Pakistan
Lagos, Nigeria
Luanda, Angola
Port Klang, Malaysia
Rio de Janeiro, Brazil
Shanghai, China
Shenzhen, China
Singapore
St. Petersburg, Russia
Port of Spain, Trinidad
Tianjin, China