Usage of the term for
rollercoaster is not limited to
England, but is also used in the former
British colony of
Australia.
The two most famous Big Dippers in .au are in the Luna Park amusement parks in Sydney and Melbourne.
The Melbourne Big Dipper is a grand old wooden rattler, making it's dips a stone's throw from the salt-spray of Port Phillip Bay. The Sydney 'Dipper is a modern steel monster, soon to be discontinued due to noise complaints from it's well-heeled neighbours.