Eurotunnel has boosted capacity and sped up its passenger trains to meet soaring demand for travel into London for the Olympic Games.
The operator of the Channel Tunnel and Le Shuttle car and coach train has already seen a "pre-Olympic" rise in traffic.
Revenues rose 14 per cent to €473m (£369m) in the six months to June, although the company's net profit was steady at €5m.
Eurostar trains will travel at 100mph rather than 87mph during the Olympics, reducing the crossing time from 35 minutes to half an hour.
Eurotunnel has also "intensified" the timetable in the early mornings to make sure spectators arrive in the capital in time for morning sessions.