I was thinking of doing a day trip from London to Paris. I was curious if the Eurostar was the only train (and respectable company) that can use the Chunnel or are there others? From all I can find, it is only the Eurostar that does this, but you can book it from other sites.
Also anyone know of sites were you can get a bit cheaper ticket for the Eurostar? I plan on going in July of this year.
Thanks in advance!