I am staying by the Hyde Park tube station but must catch the 8:36 Eurostar on a Sunday morning (so I can join a July Rick Steves Paris tour). The tube doesn't start until 7:30 on Sunday morning. What is the best way to get to the station? Is taxi the best option? Approximate cost? Do taxis take credit cards?
Take a taxi. Pay in cash, Traffic should not be a problem
The first train on a Sunday, according to TfL, is a 06:40 Piccadilly train which goes only as far as Kings Cross. That should work. Taxi may be easier, and less worrying. No clue of cost. Yes they take credit cards, cash would be easier though.
It sounds like a taxi is the best option. Thank you very much for your help.