Question about public transport from a Kiwi

Hi Everyone! I am from NZ and will be visiting the area in a couple weeks (yay!) I had a pair quick questions I hope Reddit can help me with.

  1. Best way to get from Ipswich to Caloundra? (We have relatives in Ipswich) It's looking like trains, but not sure if there's anything direct?

  2. Paying for public transport eg trains, do you use cash, eftpos or do you need a special travel card?

Thanks in advance!!