Does anyone know of any buses,( like the Grey Hound here) that I can take from London to Amsterdam ?
Eurolines has 3 departures a day from London's Victoria (Coach) Station to Amsterdam.
Why would you go by bus when there are much better modes of transport with fares that are still quite reasonable? What will this trip take...12 hours? You could take a Eurostar/Thayls train in 4 hours, or you could do an overnight train/ferry combo. No matter how you slice it, you're going to cross the channel either by ferry or tunnel, even on the bus (unless you fly).