Egypt has opened a major expansion of the Suez Canal, which deepens the main waterway and provides ships with a 35km (22 mile) channel parallel to it.
At the inauguration, Egyptian President Abdel Fattah al-Sisi welcomed foreign leaders aboard a historic yacht as helicopters and fighter jets flew by.
The expansion aims to increase the traffic handled by the canal.
Egypt’s government hopes the revenues will revive the economy – but analysts have questioned the projections.
They point out that the volume of world trade has not been growing at the pace needed to deliver the sums Egypt hopes to collect.
Egyptians commenting to the international press and on Twitter appear divided over the project, with many asking if the $8.2bn (£5.3bn) spent on the expansion could have been better deployed on improving infrastructure and public services.