Dear All
I have just received some good help and advice from the people at Travel Destinations and secured 3 camping passes plus general admin tickets (they sell as a package but did a deal that I only had to book one eurotunnel ticket). OK so I had to pay a bit extra for the tunnel but as we already have seacat tickets and just needed camping passes it proved cheaper than any other route. They still having availability for Karting Nord.
regards
Darren