Why not let the train take the strain? and your car as well. The advantages are quite obvious, you can take whatever you like, no struggles at the airport with heavy luggage, no hanging around in queues, no uncomfortable plane seats, freedom to stop when you like etc. The disadvantages could be the time taken to get to resort, tiring long drive and you have to sort out parking in resort which can be expensive.
Having said all that, Eurotunnel have some good tips for you and prices can be competitive. There are lots of useful tools to help you plan and book your journey.
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Eurotunnel Group, Ashford Road, Folkestone, Kent CT18 8XX England