<Tr> <Td> Sunderland </Td> <Td> Europe </Td> <Td> United Kingdom, England </Td> <Td> North Sea </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Thamesport </Td> <Td> Europe </Td> <Td> United Kingdom, England </Td> <Td> North Sea </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Port of Tilbury </Td> <Td> Europe </Td> <Td> United Kingdom, England </Td> <Td> North Sea </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Vlissingen </Td> <Td> Europe </Td> <Td> Netherlands </Td> <Td> North Sea </Td> <Td> </Td> <Td> </Td> </Tr>

Which city is a major international port in atlantic canada