If you'd like to travel to your ski resort by car then taking the ferry can be a good option. P&O are particularly good if you are travelling from the north of England as they offer UK crossings from Hull to Zeebrugge or Rotterdam, and from Dover to Calais.
Their website has a dedicated page for skiers, providing useful information and listing the many benefits of driving rather than flying. There are also some great deals to be had on accommodation.
Note: When driving in France it is a legal requirement to carry a high viz jacket, snow chains (in winter), an emergency triangle and, from March 2013, a breathalyser kit. You will receive an on the spot fine if you don't have them with you.
08716 64 21 21
P&O Ferries Channel House, Channel View Road, Dover CT17 9TJ UNITED KINGDOM