London Underground service is paralyzed. Only 9 out of the 12 lines are currently running after 2,300 members of the RMT union went on strike last Monday.
It's a nightmare to go around London now. Only the Jubilee, Northern and (part of) the Picadilly lines are operational because they are, thank God for those who can use those lines, maintained by another firm.
Alternative transport: regional lines, airport to city express, buses, your own car, bicycles and your very own feet.
Expect traffic jams, long lines and short tempers as you go around London.
Hopefully, they will come to an agreement as they resume talks.