Single & Return Tickets
For a one off journey just tell the driver where you want to go and purchase a single ticket using cash. If you're coming back the same day, ask for a return ticket; these offer savings on the price of two singles. Children's fares are also available and normally cost around three-quarters of the adult price.
In most cases the fare charged depends on the length of the journey you are making and these are calculated by fare stages on each route. If you are making more than one journey in the day, it may save you money to purchase a FirstDay ticket.