I fully understand that to travel to France from the UK you have to get there first, Holyhead, Liverpool, Cairnryan or whatever. We are going to Calais on Sunday (we live here) for the grand price of only £58.00.from Dover with Motorhome, on the P&O ferry, less than half the price of the tunnel. So, If you fancied a few days in the UK first and got your timing right it might be worth it. But I'm sure you all realise, Dover is a long way from Cairnryan. Worth a try.