I only used Eurostar once many years ago and not sure about current rules, would appreciate any advice:
- When/how can I reserve seats on the train? do I do this after purchasing tickets? does this involve any extra cost vs price I see on the first page?
- How much time to plan for controls on each side? are 90min in Lon and 2h in Paris realistic at all? and is there any passport control on arrival to Lon?
- I need to take some food with us (DC have severe food restrictions), will it be checked? e.g. if I take some specific cheese or meet?
TIA