Eurostar has launched a virtual reality experience to enhance high-speed train journeys for families.
Rail operator remains upbeat over 2017, as sales are 12% higher year-on-year so far in 2017.
The Paris-based company said revenues increased 4% year-on-year to €320.3m.
Tunnel eventually reopened at 18:40 after two-hour delay.
Khan is scheduled to meet with the socialist Mayor of Paris Anne Hidalgo on Thursday.
Move comes after last ditch negotiations between the parties this morning.
Operator promises it will run a full timetable through any action over guards' role.
Members of two unions at Eurostar are demanding a better 'work-life balance'.
RMT Union members to stage walkout over work-life balance dispute.
The time schedule of the train ticket will be issued just 48 hours before departure.
Eurostar passengers decline 3% in the quarter to March but surge in demand ahead of Euro 2016 football.
Suicide bombers detonated at Brussels Zaventem airport, causing multiple deaths and injuries.
Conservative leader said he was 'shocked and concerned' by suspected terror events unfolding in Belgium.
EXCLUSIVE: RMT Union tells IBTimes UK the dispute has been resolved to their satisfaction.
RMT Union says it has been in 'intensive and positive discussions' with Eurostar bosses.
Air France, United, Delta and Eurostar will maintain services to Paris with additional security
Taxpayer investment was significantly greater than proceeds generated from sale, National Audit Office says.
UK's 40% stake sold to Anglo-Canadian consortium for £757.1m.
150 people stormed the station as the protest to highlight the plight of migrants turned violent.
France and Britain agreed to discourage migrants from Africa and the Middle East from coming to Europe.
Two junctions on M20 turn into parking lot for backed up lorries.
Striking workers put burning tyres on train track in repeat of recent protest