How do I get the cheapest ferry fare?
In general the short crossings between Dover and Calais/Dunkirk are the cheapest way to cross the Channel. However there are often great savings on daytime sailings operated by Brittany Ferries to France or on Stena's Harwich - Hook of Holland route which may prove more cost-effective if they get you closer to your ultimate destination. Avoiding peak times on all routes will give you the best price, as will booking as early as possible before your travel date. Also booking your campsite or Overseas Sites Night Vouchers at the same time as your crossing will give you access to 'Combined Deals' which are often cheaper than booking each element separately.
