Obviously this depends where...
Obviously this depends where you are coming from. If abroad then plane as there is an airport in Blackpool. However if you live in the UK you could come by car, train or even bus!
If you haven't brought a car it's a good idea to catch the bus. They go practically everywhere and are very cheap. If not you could get a taxi which you would have to ring up for and they are usually very expensive but they take you direct to the place you want to go.

Central Pier
Picture of the restaurant